Contributions to the theory of nonlinear oscillations. Editor: Solomon Lefschetz. (Annals of mathematics studies, no. 20)
R657799. Contributions to the theory of nonlinear oscillations. Editor: Solomon Lefschetz. (Annals of mathematics studies, no. 20) © 15Mar50; A42082. Alice B. Lefschetz (W); 21Mar77; R657799.
Alice B. Lefschetz|W