00563nam a2200181Ia 450000100060000000800410000602000180004704000130006508200190007810000230009724500630012026000470018330000110023054600070024194200070024899900170025595201090027257789140507s9999    xx            000 0 und d  a9788132110293  cPK-LaUMT  a 001.42bSWA-C  aSwanborn, Peter G.  aCase study research what, why and how?cSwanborn, Peter G.  aLos Angeles,USA:bSage Publications,c2010  a178 p.  aEN  cBK  c55055d55055  00104070a01b01d2014-05-07l2o 001.42 SWA-Cp77402r2018-02-07 00:00:00s2018-02-02w2014-05-08yBK