author = { Beermann, Jörg AND Hißen, Frank },

title = { Public Key Infrastruktur — Schlüssel zum Erfolg },

publisher = {Springer Science and Business Media LLC},

isbn = {1867-5905},

isbn = {1867-5913},

year = {2009},

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