Ladas, G. E. Differential equations in abstract spaces/ [by] G. E. Ladas and V. Lakshmikantham. - New York: Academic Press, 1972. - xi, 218 p.: illus., 24 cm. - Mathematics in science and engineering, v. 85. . Bibliography: p. 211-214. ISBN: 0124326501 LCCN: 72182660 Subjects--Topical Terms: Banach spaces.Differential equations.Nonlinear operators Dewey Class. No.: 515.73 / L153d