@book{61227,
	author = {Strauss, Anselm and Corbin, Juliet M.},
	title = {Grounded theory},
	publisher = {Beltz, PsychologieVerlagsUnion},
	year = {1996},
	series = {Literaturverz. S. 225 - 227},
	address = {Weinheim}
}