00317nam a2200109Ia 4500008004100000040002500041082001500066100002400081245006200105260002900167300001100196230627s9999    xx            000 0 und d  aNORSU-SiacNORSU-Sia  a338.04 D84  aDrucker ,  Peter F. 0aInnovation and entrepreneurship: practice and principles   bHEINEMANN : LONDONc1985  a258 p.