@misc{Cotter2009,
author = {Cotter, D.A. and Hermsen, J.M. and Vanneman, R.},
title= {The stalled revolution},
year = {2009},
URL = {http://www.bsos.umd.edu/socy/vanneman/endofgr/default.html},
publisher = {University of Maryland},
address = {College Park},
}