00386nam a2200121Ia 4500082001700000100002800017245005500045260006000100300001500160490007900175500000500254700000500259  a512bG881.GB  aGrothendieck, Alexandre  aGroupes de barsottitate et cristaux de Dieudonneb  aMontrealbLes presses de l'Universite de Montrealc1974  a155p. Bibl  aUniv. of Montreal, Seminaire de Mathematiques superieures, ETE 1970, v. 45  a  a