author = { W. E. Upjohn Institute for Employment Research Kalamazoo, Mich },

title = { Upjohn Institute working papers },

publisher = {[Verlag nicht ermittelbar]},

keywords = { Arbeitspapier , Graue Literatur , Monografische Reihe },

year = {1990-},

abstract = {Gesehen am 09.10.12},

address = { Kalamazoo, Mich. },

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