00275nam a2200109Ia 4500008004100000022001800041040002500059082001700084100002400101245003100125260000900156240215s9999    xx            000 0 und d  a971-37-0060-0  aNORSU-DumcNORSU-Dum  a003/K33/1992  aKendall, Kenneth E. 0aSystem Analysis and Design  c1992