author = { Thiedeke, Udo },

title = { Virtuelle Gruppen Charakteristika und Problemdimensionen },

publisher = {Westdt. Verl.},

isbn = {9783531133720},

isbn = {3531133721},

keywords = { Social Media , Gruppe , Cyberspace },

year = {2000},

abstract = {Literaturangaben},

address = { Wiesbaden },

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