TY - BOOK AU - Greither,Cornelius TI - Cyclic Galois extensions of commutative rings T2 - Lecture notes in mathematics SN - 0387563504 PY - 1992/// CY - Berlin , New York PB - Springer-Verlag KW - Commutative rings KW - Galois theory KW - Ring extensions (Algebra) N1 - Includes bibliographical references (p. [140]-143) and index ER -