Leimanis, E. Dynamics and nonlinear mechanics : some recent advances in the dy namics of rigid bodies and celestial mechanics / [by] E. Leimanis. - New York : Wiley, [1958]. - xii, 206 p. : ill., diagrs. ; 24 cm. - Surveys in applied mathematics ; no. 2. . Includes bibliographical references. Subjects--Topical Terms: Dynamics.Mechanics, Celestial.Oscillations.