00285nam a2200109Ia 4500008004100000022001800041040002500059082001500084100002000099245003200119260002400151240215s9999    xx            000 0 und d  a0-13-857764-1  aNORSU-DumcNORSU-Dum  a004.21/L53  aMark Lejk,et.al 0aSystems Analysis Techniques  bPrentice Hallc1998