00345nam a2200121 a 450000500170000008200160001710000170003324500480005026000360009830000230013449000380015763000280019520251202164142.0  a512.72bHEC  aHecke, Erick  aLectures on the theory of algebraic numbers  aNew YorkbSpringer-Verlagc1981  a239 p.c24 cm.bPB  aGraduate texts in mathematicsd77  aAlgebraic number theory