author = { Philipson, Tomas J. National Bureau of Economic Research Posner, Richard A. },

title = { Antitrust and the Not-For-Profit Sector },

publisher = {National Bureau of Economic Research},

year = {February 2001},

booktitle = {NBER working paper series ; no. w8126},

address = { Cambridge, Mass },

url = { http://slubdd.de/katalog?TN_libero_mab2 }