@book{helm2002,
	title = {Marketing Arbeitsbuch : Aufgabenstellungen und Lösungsvorschläge},
	address = {Lucius & Lucius},
	annote = {XV, 252 S.},
	author = {{Roland} Helm and {Heribert} Gierl and {Franz} Böcker and {Lutz} Thomas},
	edition = {3. Aufl.},
	howpublished = {Stuttgart [u.a.]},
	url = {http://gso.gbv.de/DB=2.1/CMD?ACT=SRCHA&SRT=YOP&IKT=1016&TRM=ppn+361508735&sourceid=fbw_bibsonomy},
	year = {2002},
	biburl = {http://www.bibsonomy.org/bibtex/2667e2c941ec52678f4bfd041fa6e31a9/fbw},
	description = {imported},
	isbn = {3-8282-0228-4},
	keywords = {imported }
}