N. V. Efimov, “Some problems of the theory of deformation of surfaces”, Uspekhi Mat. Nauk, 1946, Volume 1, Issue 1(11),Pages <nobr>220

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Uspekhi Mat. Nauk, 1946 Volume 1, Issue 1(11), Pages 220–222 (Mi rm7019)

Mathematical Problems

Some problems of the theory of deformation of surfaces

N. V. Efimov