00484     2200169   4500001002100000008003900021035002000060245008100080100002100161260003100182300002000213020001500233084001700248082001100265650002400276990001400300INLIS000000000001240                                   N    a0010-0317001238  aBifuractions and catastrophes : geometry of solutions to non linear problems  aDemazure, Michel  aNew York :bSpringerc2000  a302 hlm.c26 cm  a3540521186  a515.35 Dem b  a515.35  aBIFURCATIONS THEORY  a009003212