Davies, E. B. (Edward Brian) 1944-, One-parameter semigroups / E. B. Davies. - London : Academic Press, 1980. - viii, 230 pages : 24 cm. - L.M.S. monographs 15 . Bibliography: p221-226. - Includes index. ISBN: 0122062809 Subjects--Topical Terms: Semigroups.