00319nam a2200109Ia 4500100002500000110002400025245007500049260002900124300000900153490004200162490000500204  aFrancois, Laudenbach  aUniversite Paris XI  aPseudo_isotopie et torsionbCours de 3e cycle (1971-1972, 2e semestre)  aOrsay, Francec1971-1972  a87p.  aPublications Mathematiqes D'Orsay; 17  a