@book{ title = "30 Minuten Business-Telefonate", author = "Fischer, Claudia", year = "2012", publisher = "GABAL-Verlag", address = "Offenbach", language = "ger", howpublished = "online", isbn = "9783862007110", keywords = "Ratgeber,Telefonmarketing,Gesprächsführung,Kundenservice,Business-Telefonate,Anruf,Kommunikation,Kunde,Kundenkontakt,Rhetorik,Service,Stimme,Telefon,Telefonat,Telefongespräch,Telefonieren,Business,Wirtschaft", content = "Verlag", "Volltext", }