Citations according to
Google Scholar
: 1738 (h-index: 15)
0
180
90
45
135
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
32
52
88
120
130
133
121
88
103
63
76
90
87
89
124
164
158