Roggenkamp, Klaus W Lattices over orders 1 - - Berlin Springer-Verlag 1970 - xix, 290 p. Bibliog.p. 272-288 ISBN: ISSN: Subjects--Index Terms: Mathematics Number theory Set theory Group theory Algebra Number theory Probabilities Group theory Linear algebra Rings Fields Vector spaces Rings and fields Dewey Class. No.: 512.56