TY - BOOK AU - Passman Donald S TI - Group rings, crossed products and galois theory T2 - Conference Board of the Mathematical Sciences, regional conference series in mathematics; 64 SN - 0821807145 (pbk) U1 - B239MR, M6 PY - 1986/// CY - Providence, Rhode Island PB - American Mathematical Soceity KW - Algebra KW - Ring theory KW - Theory of equations KW - Associative rings N1 - Includes bibliographical references ER -