Leifeld, Philip Max Planck Institute for Research on Collective Goods, Max Planck Society;
http://www.ub.uni-konstanz.de/kops/volltexte/2007/2663 (Any fulltext)
Leifeld, P. (2007). Policy Networks. A Citation Analysis of the Quantitative Literature. Master thesis. University of Konstanz, Department of Politics and Management. Thesis, Department of Politics and Management, University Konstanz.