9Nederhof Anton J. Bibliometric monitoring of research performance in the social sciences and the humanities: A review. Scientometries, 2006, 66(1): 81-100.].
10] Yangge Tian, Cheng Wen, Song Hong. Global scientific production on GIS research by bibliometric analysis from 1997 to 2006. Journal of Informetrics, 2008, 2(1): 65-74.].