00406nam a2200133Ia 4500082001800000100003900018245004300057260004900100300001500149490004100164500000500205700002900210700003300239  a512.7bK19.AM  aKatz, Nicholas M. and Mazur, Berry  aArithmetic moduli of elliptic curvesb  aNew JerseybPrinceton University Pressc1985  axiv, 514p.  aAnnals of Mathematics studies v 108  a  aMazur, Berry ; pseudonym  aPetschek, William; jt. auth.