00364nam a2200145Ia 450000100060000000800410000602000180004704000130006508200250007810000130010324500750011626000090019130000110020054600070021114166140402s9999    xx            000 0 und d  a0-415-05851-1  cPK-LaUMT  a 001.42250285bDEY-Q  aDey, Ian  aQualitative data analysis : A user-friendly guide for socialcDey, Ian  c1993  a285 p.  aEN