Variationsrechnung im Grossen (Theorie von Marston Morse von H. Seifert und W. Threlfall.

by Seifert, H. (Herbert), 1907-
Published 1951

Seifert and Threlfall, A textbook of topology H. Seifert and W. Threlfall ; translated by M. A. Goldman, and Seifert, Topology of 3-dimensional fibered spaces / H. Seifert ; translated by Wolfgang Heil ; edited by Joan Birman and Julian Eisner.

by Seifert, H. (Herbert), 1907-
Published 1980