00285nam a2200109Ia 4500100001600000110002800016245004700044260002400091300000900115490004600124490000500170  aMercier, B.  aUniversite de Paris-Sud  aIequations variationnelles de la mecanique  aOrsay, Francec1980  a98p.  aPublications Mathematiques D'Orsay; 80-01  a