Citation analysis for Advances in Spatial Science / Springer

Citation Profile [Updated: 2024-11-03 20:16:59]

5 Years H Index

Impact Factor (IF)

0.2

5 Years IF

0.71

Data available in this report

[Raw data] [50 most cited papers] [50 most relevant papers] [cites used to compute IF] [Recent citations ][Frequent citing series ] [more data in EconPapers] [trace new citations] [Missing citations? Add them now] [Incorrect content? Let us know]

Main indicators

Raw Data

	IF	AIF	CIF	IF5	DOC	CDO	CIT	NCI	CCU	D2Y	C2Y	D5Y	C5Y	SC	%SC	CiY	II	AII
1995	0		0	0	4	4	21		0	0		0			0		0
1996	0.25		0.14	0.25	3	7	70	1	1	4	1	4	1		0		0
1997	0.43		0.42	0.43	5	12	99	5	6	7	3	7	3		0	2	0.4
1998	1.5		1.13	1.25	4	16	162	18	24	8	12	12	15		0	2	0.5
1999	1.33		1.05	1	5	21	180	22	46	9	12	16	16		0	5	1
2000	0.89		1	1.05	3	24	18	23	70	9	8	21	22		0		0
2001	1.38		1.07	1.15	5	29	199	31	101	8	11	20	23		0	5	1
2002	1.38		1.46	1.86	6	35	157	50	152	8	11	22	41		0	7	1.17
2003	0.73		1.13	1.26	5	40	495	45	197	11	8	23	29		0	7	1.4
2004	2.09		1.67	1.75	5	45	66	74	272	11	23	24	42		0	1	0.2
2005	3.1		1.58	2.17	3	48	17	76	348	10	31	24	52		0	1	0.33
2006	0.38		1.55	2.13	3	51	136	79	427	8	3	24	51		0	1	0.33
2007	1.67		1.59	1.91	3	54	23	86	513	6	10	22	42		0	1	0.33
2008	1		1.7	2.37	2	56	78	95	608	6	6	19	45		0	2	1
2009	0.6		1.48	1.25	6	62	136	92	700	5	3	16	20		0		0
2010	0.63		1.67	0.76	4	66	12	110	810	8	5	17	13		0	1	0.25
2011	1.9		2.44	2.56	4	70	151	171	981	10	19	18	46		0	2	0.5
2012	1.63		1.92	1.89	2	72	0	138	1119	8	13	19	36		0		0
2013	4		1.81	2.33	9	81	138	147	1266	6	24	18	42		0	5	0.56
2014	1.27		1.64	1.6	3	84	19	138	1404	11	14	25	40		0	3	1
2015	1.75		1.6	1.73	2	86	12	138	1542	12	21	22	38		0		0
2016	0.4		1.4	1.6	1	87	25	122	1664	5	2	20	32		0		0
2017	2.33		1.04	1.41	5	92	21	96	1760	3	7	17	24		0	4	0.8
2018	1.33		1.06	1.2	6	98	42	104	1864	6	8	20	24		0		0
2019	0.91		0.96	1.18	2	100	26	96	1960	11	10	17	20		0	2	1
2020	1.88		1.17	1.69	1	101	0	118	2078	8	15	16	27		0		0
2021	3		1.31	1.93	3	104	3	136	2214	3	9	15	29		0	2	0.67
2022	0.25		0.59	0.82	2	106	0	63	2277	4	1	17	14		0		0
2023	0.2		0.39	0.71	3	109	1	42	2319	5	1	14	10		0	1	0.33

IF:	Two years Impact Factor: C2Y / D2Y
AIF:	Average Impact Factor for all series in RePEc in year y
CIF:	Cumulative impact factor
IF5:	Five years Impact Factor: C5Y / D5Y
DOC:	Number of documents published in year y
CDO:	Cumulative number of documents published until year y
CIT:	Number of citations to papers published in year y
NCI:	Number of citations in year y
CCU:	Cumulative number of citations to papers published until year y
D2Y:	Number of articles published in y-1 plus y-2
C2Y:	Cites in y to articles published in y-1 plus y-2
D5Y:	Number of articles published in y-1 until y-5
C5Y:	Cites in y to articles published in y-1 until y-5
SC:	selft citations in y to articles published in y-1 plus y-2
%SC:	Percentage of selft citations in y to articles published in y-1 plus y-2
CiY:	Cites in year y to documents published in year y
II:	Immediacy Index: CiY / Documents.
AII:	Average Immediacy Index for series in RePEc in year y

50 most cited documents in this series

#	Year	Title	Cited
1	2003	European Regional Growth. (2003). Fingleton, Bernard. In: Advances in Spatial Science. RePEc:spr:adspsc:978-3-662-07136-6. Full description at Econpapers \|\| Download paper	198
2	2003	Innovation Clusters and Interregional Competition. (2003). Dohse, Dirk. In: Advances in Spatial Science. RePEc:spr:adspsc:978-3-540-24760-9. Full description at Econpapers \|\| Download paper	165
3	2003	Spatial Autocorrelation and Spatial Filtering. (2003). Griffith, Daniel A. In: Advances in Spatial Science. RePEc:spr:adspsc:978-3-540-24806-4. Full description at Econpapers \|\| Download paper	134
4	2001	Knowledge, Complexity and Innovation Systems. (2001). Fischer, Manfred. In: Advances in Spatial Science. RePEc:spr:adspsc:978-3-662-04546-6. Full description at Econpapers \|\| Download paper	93
5	2001	Theories of Endogenous Regional Growth. (2001). Karlsson, Charlie. In: Advances in Spatial Science. RePEc:spr:adspsc:978-3-642-59570-7. Full description at Econpapers \|\| Download paper	89
6	1998	Is Transport Infrastructure Effective?. (1998). Bruinsma, Frank ; Rietveld, Piet. In: Advances in Spatial Science. RePEc:spr:adspsc:978-3-642-72232-5. Full description at Econpapers \|\| Download paper	83
7	2006	Social Capital in the Knowledge Economy. (2006). Westlund, Hans. In: Advances in Spatial Science. RePEc:spr:adspsc:978-3-540-35366-9. Full description at Econpapers \|\| Download paper	81
8	2008	Modelling Regional Scenarios for the Enlarged Europe. (2008). Fratesi, Ugo ; Chizzolini, Barbara ; Camagni, Roberto ; Capello, Roberta. In: Advances in Spatial Science. RePEc:spr:adspsc:978-3-540-74737-6. Full description at Econpapers \|\| Download paper	79
9	1999	Understanding and Interpreting Economic Structure. (1999). Hewings, Geoffrey. In: Advances in Spatial Science. RePEc:spr:adspsc:978-3-662-03947-2. Full description at Econpapers \|\| Download paper	75
10	2013	Geography, Institutions and Regional Economic Performance. (2013). Percoco, Marco ; Crescenzi, Riccardo. In: Advances in Spatial Science. RePEc:spr:adspsc:978-3-642-33395-8. Full description at Econpapers \|\| Download paper	66
11	2002	Trade, Networks and Hierarchies. (2002). Hewings, Geoffrey. In: Advances in Spatial Science. RePEc:spr:adspsc:978-3-662-04786-6. Full description at Econpapers \|\| Download paper	58
12	2011	Innovation and Regional Growth in the European Union. (2011). Rodriguez-Pose, Andres ; Crescenzi, Riccardo. In: Advances in Spatial Science. RePEc:spr:adspsc:978-3-642-17761-3. Full description at Econpapers \|\| Download paper	56
13	1999	Innovation, Networks and Localities. (1999). Fischer, Manfred. In: Advances in Spatial Science. RePEc:spr:adspsc:978-3-642-58524-1. Full description at Econpapers \|\| Download paper	55
14	1996	Infrastructure and the Complexity of Economic Development. (1996). Karlsson, Charlie. In: Advances in Spatial Science. RePEc:spr:adspsc:978-3-642-80266-9. Full description at Econpapers \|\| Download paper	54
15	2002	The Emergence of the Knowledge Economy. (2002). Nijkamp, Peter ; de Groot, Henri ; acs, zoltan. In: Advances in Spatial Science. RePEc:spr:adspsc:978-3-540-24823-1. Full description at Econpapers \|\| Download paper	52
16	2006	The Emerging Digital Economy. (2006). Karlsson, Charlie ; Johansson, BÃÆÃÂ¶rje. In: Advances in Spatial Science. RePEc:spr:adspsc:978-3-540-34488-9. Full description at Econpapers \|\| Download paper	52
17	2004	Spatial Interaction Modelling. (2004). Roy, John R. In: Advances in Spatial Science. RePEc:spr:adspsc:978-3-540-24807-1. Full description at Econpapers \|\| Download paper	46
18	1997	Recent Developments in Spatial Analysis. (1997). Fischer, Manfred. In: Advances in Spatial Science. RePEc:spr:adspsc:978-3-662-03499-6. Full description at Econpapers \|\| Download paper	46
19	2011	Drivers of Innovation, Entrepreneurship and Regional Dynamics. (2011). Nijkamp, Peter ; KOURTIT, KARIMA. In: Advances in Spatial Science. RePEc:spr:adspsc:978-3-642-17940-2. Full description at Econpapers \|\| Download paper	45
20	2009	Growth and Innovation of Competitive Regions. (2009). Fratesi, Ugo. In: Advances in Spatial Science. RePEc:spr:adspsc:978-3-540-70924-4. Full description at Econpapers \|\| Download paper	45
21	2009	Complexity and Spatial Networks. (2009). Reggiani, Aura ; Nijkamp, Peter. In: Advances in Spatial Science. RePEc:spr:adspsc:978-3-642-01554-0. Full description at Econpapers \|\| Download paper	39
22	2009	New Directions in Regional Economic Development. (2009). Karlsson, Charlie ; Cheshire, Paul. In: Advances in Spatial Science. RePEc:spr:adspsc:978-3-642-01017-0. Full description at Econpapers \|\| Download paper	35
23	2011	Globalization and Regional Growth in Europe. (2011). Resmini, Laura ; Fratesi, Ugo ; Capello, Roberta. In: Advances in Spatial Science. RePEc:spr:adspsc:978-3-642-19251-7. Full description at Econpapers \|\| Download paper	35
24	1998	The Economics of Industrial Location. (1998). McCann, Philip. In: Advances in Spatial Science. RePEc:spr:adspsc:978-3-662-03702-7. Full description at Econpapers \|\| Download paper	34
25	1998	Network Infrastructure and the Urban Environment. (1998). Mattsson, Lars-GÃÂ¶ran. In: Advances in Spatial Science. RePEc:spr:adspsc:978-3-642-72242-4. Full description at Econpapers \|\| Download paper	33
26	2001	Metropolitan Innovation Systems. (2001). Snickars, Folke ; Diez, Javier Revilla ; RevillaDiez, Javier ; Fischer, Manfred M. In: Advances in Spatial Science. RePEc:spr:adspsc:978-3-662-04630-2. Full description at Econpapers \|\| Download paper	33
27	1997	Innovative Behaviour in Space and Time. (1997). Nijkamp, Peter. In: Advances in Spatial Science. RePEc:spr:adspsc:978-3-642-60720-2. Full description at Econpapers \|\| Download paper	31
28	1999	Spatial Dynamics of European Integration. (1999). Nijkamp, Peter ; Fischer, Manfred. In: Advances in Spatial Science. RePEc:spr:adspsc:978-3-642-60180-4. Full description at Econpapers \|\| Download paper	26
29	2016	Spatial Econometric Interaction Modelling. (2016). Patuelli, Roberto ; arbia, giuseppe. In: Advances in Spatial Science. RePEc:spr:adspsc:978-3-319-30196-9. Full description at Econpapers \|\| Download paper	26
30	1999	Sustainable Cities and Energy Policies. (1999). Pepping, Gerard ; Nijkamp, Peter ; Capello, Roberta. In: Advances in Spatial Science. RePEc:spr:adspsc:978-3-662-03833-8. Full description at Econpapers \|\| Download paper	25
31	2013	Regional Problems and Policies in Latin America. (2013). Cuadrado-Roura, Juan ; Aroca, Patricio. In: Advances in Spatial Science. RePEc:spr:adspsc:978-3-642-39674-8. Full description at Econpapers \|\| Download paper	23
32	2013	Service Industries and Regions. (2013). Cuadrado-Roura, Juan. In: Advances in Spatial Science. RePEc:spr:adspsc:978-3-642-35801-2. Full description at Econpapers \|\| Download paper	22
33	2007	Globalization and Regional Economic Modeling. (2007). Hewings, Geoffrey. In: Advances in Spatial Science. RePEc:spr:adspsc:978-3-540-72444-5. Full description at Econpapers \|\| Download paper	22
34	1995	Technological Change, Economic Development and Space. (1995). Fischer, Manfred. In: Advances in Spatial Science. RePEc:spr:adspsc:978-3-642-79760-6. Full description at Econpapers \|\| Download paper	21
35	2002	National Transport Models. (2002). Mattsson, Lars-GÃÂ¶ran. In: Advances in Spatial Science. RePEc:spr:adspsc:978-3-662-04853-5. Full description at Econpapers \|\| Download paper	20
36	2004	Transport Developments and Innovations in an Evolving World. (2004). Reggiani, Aura. In: Advances in Spatial Science. RePEc:spr:adspsc:978-3-540-24827-9. Full description at Econpapers \|\| Download paper	19
37	2011	Innovation, Growth and Competitiveness. (2011). SIEDSCHLAG, IULIA ; Nijkamp, Peter. In: Advances in Spatial Science. RePEc:spr:adspsc:978-3-642-14965-8. Full description at Econpapers \|\| Download paper	19
38	2005	Methods and Models in Transport and Telecommunications. (2005). Reggiani, Aura. In: Advances in Spatial Science. RePEc:spr:adspsc:978-3-540-28550-2. Full description at Econpapers \|\| Download paper	18
39	2000	Spatial Economic Science. (2000). Reggiani, Aura. In: Advances in Spatial Science. RePEc:spr:adspsc:978-3-642-59787-9. Full description at Econpapers \|\| Download paper	18
40	2013	Convergence Clubs and Spatial Externalities. (2013). Alexiadis, Stilianos. In: Advances in Spatial Science. RePEc:spr:adspsc:978-3-642-31626-5. Full description at Econpapers \|\| Download paper	15
41	2002	Regional Economic Development. (2002). Roberts, Brian H ; Stough, Roger R ; Stimson, Robert J. In: Advances in Spatial Science. RePEc:spr:adspsc:978-3-662-04911-2. Full description at Econpapers \|\| Download paper	15
42	2002	Regional Development Reconsidered. (2002). Fischer, Manfred. In: Advances in Spatial Science. RePEc:spr:adspsc:978-3-642-56194-8. Full description at Econpapers \|\| Download paper	14
43	1996	Recent Advances in Spatial Equilibrium Modelling. (1996). Nijkamp, Peter. In: Advances in Spatial Science. RePEc:spr:adspsc:978-3-642-80080-1. Full description at Econpapers \|\| Download paper	14
44	1998	Information and Pricing in Road Transportation. (1998). , Richard. In: Advances in Spatial Science. RePEc:spr:adspsc:978-3-642-72143-4. Full description at Econpapers \|\| Download paper	14
45	2019	Advances in Spatial and Economic Modeling of Disaster Impacts. (2019). Okuyama, Yasuhide. In: Advances in Spatial Science. RePEc:spr:adspsc:978-3-030-16237-5. Full description at Econpapers \|\| Download paper	14
46	1997	Mathematical Location and Land Use Theory. (1997). Puu, Tonu. In: Advances in Spatial Science. RePEc:spr:adspsc:978-3-662-03439-2. Full description at Econpapers \|\| Download paper	13
47	2019	The Econometric Analysis of Non-Stationary Spatial Panel Data. (2019). Felsenstein, Daniel ; Beenstock, Michael. In: Advances in Spatial Science. RePEc:spr:adspsc:978-3-030-03614-0. Full description at Econpapers \|\| Download paper	13
48	2015	Sampling Spatial Units for Agricultural Surveys. (2015). Postiglione, Paolo ; Piersimoni, Federica ; Benedetti, Roberto. In: Advances in Spatial Science. RePEc:spr:adspsc:978-3-662-46008-5. Full description at Econpapers \|\| Download paper	13
49	2018	New Frontiers in Interregional Migration Research. (2018). Venhorst, Viktor ; Faggian, Alessandra. In: Advances in Spatial Science. RePEc:spr:adspsc:978-3-319-75886-2. Full description at Econpapers \|\| Download paper	13
50	2018	Location Covering Models. (2018). Murray, Alan ; Church, Richard L. In: Advances in Spatial Science. RePEc:spr:adspsc:978-3-319-99846-6. Full description at Econpapers \|\| Download paper	13

50 most relevant documents in this series (papers most cited in the last two years)

#	Year	Title	Cited
1	2003	Spatial Autocorrelation and Spatial Filtering. (2003). Griffith, Daniel A. In: Advances in Spatial Science. RePEc:spr:adspsc:978-3-540-24806-4. Full description at Econpapers \|\| Download paper	10
2	2019	The Econometric Analysis of Non-Stationary Spatial Panel Data. (2019). Felsenstein, Daniel ; Beenstock, Michael. In: Advances in Spatial Science. RePEc:spr:adspsc:978-3-030-03614-0. Full description at Econpapers \|\| Download paper	9
3	2011	Innovation and Regional Growth in the European Union. (2011). Rodriguez-Pose, Andres ; Crescenzi, Riccardo. In: Advances in Spatial Science. RePEc:spr:adspsc:978-3-642-17761-3. Full description at Econpapers \|\| Download paper	8
4	1999	Understanding and Interpreting Economic Structure. (1999). Hewings, Geoffrey. In: Advances in Spatial Science. RePEc:spr:adspsc:978-3-662-03947-2. Full description at Econpapers \|\| Download paper	8
5	2006	Social Capital in the Knowledge Economy. (2006). Westlund, Hans. In: Advances in Spatial Science. RePEc:spr:adspsc:978-3-540-35366-9. Full description at Econpapers \|\| Download paper	7
6	2018	Location Covering Models. (2018). Murray, Alan ; Church, Richard L. In: Advances in Spatial Science. RePEc:spr:adspsc:978-3-319-99846-6. Full description at Econpapers \|\| Download paper	7
7	1998	Is Transport Infrastructure Effective?. (1998). Bruinsma, Frank ; Rietveld, Piet. In: Advances in Spatial Science. RePEc:spr:adspsc:978-3-642-72232-5. Full description at Econpapers \|\| Download paper	5
8	2006	The Emerging Digital Economy. (2006). Karlsson, Charlie ; Johansson, BÃÆÃÂ¶rje. In: Advances in Spatial Science. RePEc:spr:adspsc:978-3-540-34488-9. Full description at Econpapers \|\| Download paper	5
9	2018	Modelling Aging and Migration Effects on Spatial Labor Markets. (2018). Nijkamp, Peter ; KOURTIT, KARIMA ; Blien, Uwe. In: Advances in Spatial Science. RePEc:spr:adspsc:978-3-319-68563-2. Full description at Econpapers \|\| Download paper	5
10	2006	Spatial Econometrics. (2006). Arbia, Giuseppe. In: Advances in Spatial Science. RePEc:spr:adspsc:978-3-540-32305-1. Full description at Econpapers \|\| Download paper	3
11	2009	New Directions in Regional Economic Development. (2009). Karlsson, Charlie ; Cheshire, Paul. In: Advances in Spatial Science. RePEc:spr:adspsc:978-3-642-01017-0. Full description at Econpapers \|\| Download paper	3
12	2003	European Regional Growth. (2003). Fingleton, Bernard. In: Advances in Spatial Science. RePEc:spr:adspsc:978-3-662-07136-6. Full description at Econpapers \|\| Download paper	3
13	2004	Spatial Interaction Modelling. (2004). Roy, John R. In: Advances in Spatial Science. RePEc:spr:adspsc:978-3-540-24807-1. Full description at Econpapers \|\| Download paper	3
14	2013	Convergence Clubs and Spatial Externalities. (2013). Alexiadis, Stilianos. In: Advances in Spatial Science. RePEc:spr:adspsc:978-3-642-31626-5. Full description at Econpapers \|\| Download paper	2
15	2015	Sampling Spatial Units for Agricultural Surveys. (2015). Postiglione, Paolo ; Piersimoni, Federica ; Benedetti, Roberto. In: Advances in Spatial Science. RePEc:spr:adspsc:978-3-662-46008-5. Full description at Econpapers \|\| Download paper	2
16	2018	New Frontiers in Interregional Migration Research. (2018). Venhorst, Viktor ; Faggian, Alessandra. In: Advances in Spatial Science. RePEc:spr:adspsc:978-3-319-75886-2. Full description at Econpapers \|\| Download paper	2
17	2013	Geography, Institutions and Regional Economic Performance. (2013). Percoco, Marco ; Crescenzi, Riccardo. In: Advances in Spatial Science. RePEc:spr:adspsc:978-3-642-33395-8. Full description at Econpapers \|\| Download paper	2
18	2013	Service Industries and Regions. (2013). Cuadrado-Roura, Juan. In: Advances in Spatial Science. RePEc:spr:adspsc:978-3-642-35801-2. Full description at Econpapers \|\| Download paper	2
19	2023	Transportation Systems for Tourism. (2023). Pagliara, Francesca ; Dileep, M R. In: Advances in Spatial Science. RePEc:spr:adspsc:978-3-031-22127-9. Full description at Econpapers \|\| Download paper	2
20	1998	Network Infrastructure and the Urban Environment. (1998). Mattsson, Lars-GÃÂ¶ran. In: Advances in Spatial Science. RePEc:spr:adspsc:978-3-642-72242-4. Full description at Econpapers \|\| Download paper	2
21	2014	Names, Ethnicity and Populations. (2014). Mateos, Pablo. In: Advances in Spatial Science. RePEc:spr:adspsc:978-3-642-45413-4. Full description at Econpapers \|\| Download paper	2
22	2001	Knowledge, Complexity and Innovation Systems. (2001). Fischer, Manfred. In: Advances in Spatial Science. RePEc:spr:adspsc:978-3-662-04546-6. Full description at Econpapers \|\| Download paper	2
23	2004	Modeling Spatial and Economic Impacts of Disasters. (2004). . In: Advances in Spatial Science. RePEc:spr:adspsc:978-3-540-24787-6. Full description at Econpapers \|\| Download paper	2
24	2013	Regional Problems and Policies in Latin America. (2013). Cuadrado-Roura, Juan ; Aroca, Patricio. In: Advances in Spatial Science. RePEc:spr:adspsc:978-3-642-39674-8. Full description at Econpapers \|\| Download paper	2

Citing documents used to compute impact factor: 1

Year	Title
2023	Planning for ClimateâBenign Cities â Design of a Mind Map for Smart Energy Transition. (2023). Henk, Scholten ; Peter, Nijkamp ; Karima, Kourtit. In: Economic Themes. RePEc:vrs:ecothe:v:61:y:2023:i:1:p:41-61:n:4. Full description at Econpapers \|\| Download paper

Recent citations

Recent citations received in 2023

Year	Citing document
2023	E-Tourism for Sustainable Development through Alternative Tourism Activities. (2023). Andreopoulou, Zacharoula ; Koliouska, Christiana. In: Sustainability. RePEc:gam:jsusta:v:15:y:2023:i:11:p:8485-:d:1153928. Full description at Econpapers \|\| Download paper

Recent citations received in 2021

Year	Citing document
2021	Creating Opportunities for the Development of Craft Beer Tourism in Serbia as a New Form of Sustainable Tourism. (2021). Blei, Ivana ; Ralji, Jovanka Popov ; Gaji, Tamara ; Sikimi, Vinja ; Yakovenko, Natalia V ; Petrovi, Marko D ; Vukoli, Dragan ; Aleksi, Milica. In: Sustainability. RePEc:gam:jsusta:v:13:y:2021:i:16:p:8730-:d:608581. Full description at Econpapers \|\| Download paper
2021	Analysis of the state and development opportunities of hospitality industry on the example of Sergiivka resort (Ukraine). (2021). Lebedenko, Tetiana ; Kozhevnikova, Viktoriia ; Shunko, Hanna ; Nikitchina, Tatiana. In: Technology audit and production reserves. RePEc:nos:ddldem:107. Full description at Econpapers \|\| Download paper

10 most frequent citing series

#	Series	H	Cites
1	Sustainability / MDPI	66	47
2	The Annals of Regional Science / Springer	52	22
3	Papers in Regional Science / Wiley Blackwell	50	12
4	Regional Science Policy & Practice / Wiley Blackwell	13	10
5	Journal of Geographical Systems / Springer	25	9
6	Journal of Transport Geography / Elsevier	63	8
7	International Regional Science Review / SAGE Publications	38	8
8	Structural Change and Economic Dynamics / Elsevier	53	7
9			7
10	MPRA Paper / University Library of Munich, Germany	129	7
11	Papers in Innovation Studies / Lund University, CIRCLE - Centre for Innovation Research	20	5