2013 Journal Impact Factor

Cites in 2013 to articles published in:	2012 =	43		Number of articles published in:	2012 =	238
	2011 =	49			2011 =	227
	Sum:	92			Sum:	465

Calculation: Cites to recent articles    92 = 0.198    Number of recent articles   465

5-Year Journal Impact Factor

Cites in {2013} to items published in:	2012 =	43		Number of items published in:	2012 =	238
	2011 =	49			2011 =	227
	2010 =	36			2010 =	237
	2009 =	30			2009 =	224
	2008 =	30			2008 =	214
	Sum:	188			Sum:	1140

Calculation:	Cites to recent items	188	=	0.165
	Number of recent items	1140

Journal Immediacy Index

Cites in 2013 to items published in 2013	=	18
Number of items published in 2013	=	234

Calculation:	Cites to current items	18	=	0.077
	Number of current items	234

Breakdown of the citations to the journal by the cumulative percent of 2013 cites to items published
in the following years:

Cited Year	2013	2012	2011	2010	2009	2008	2007	2006	2005	2004	2003-all
# Cites from 2013	18	43	49	36	30	30	16	12	4	11	110
Cumulative %	5.01	16.99	30.64	40.67	49.03	57.38	61.84	65.18	66.30	69.36	100

Journal Self Cites The tables show the contribution of the journal's self cites to its impact factor.

Total Cites 359 Cites to Years Used in Impact Factor Calculation 92 Impact Factor 0.198

Self Cites 143 (39% of 359) Self Cites to Years Used in Impact Factor Calculation 49 (53% of 92) Impact Factor without Self Cites 0.092