00318nam a2200121Ia 4500008004100000020001800041041000800059082002200067100002100089245004400110260003400154300000800188211209s1998    xx            000 0 und d  a3-540-65306-6  aeng  a004.6 N98 REI/ROZ  aREISIG, WOLFGANG  aLECTURES ON PETRI NETS I: BASIC MODELS   aBERLINbSPRINGER VERLAGc1998  a681