00385nam a2200121Ia 4500082001700000100001900017245014500036260002900181300001000210490003300220500000500253700000500258  a516bP534.SS  aPham, Frederic  aSingularites des systemes differentiels de Gauss-Manin, avec des contributions de Lo Kam Chan, Philippe Maisonobe et Jean-Etienne Rombaldib  aBostonbBirkhauserc1979  a339p.  aProgress in Mathematics v 2  a  a