Transformations of surfaces by means of focal families of rays
Trudy Matematicheskogo Instituta imeni V.A. Steklova, Tome 16 (1961) no. 1
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@article{RM_1961_16_1_a18,
author = {M. A. Akivis},
title = {Transformations of surfaces by means of focal families of rays},
journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
year = {1961},
volume = {16},
number = {1},
language = {ru},
url = {http://geodesic.mathdoc.fr/item/RM_1961_16_1_a18/}
}
M. A. Akivis. Transformations of surfaces by means of focal families of rays. Trudy Matematicheskogo Instituta imeni V.A. Steklova, Tome 16 (1961) no. 1. http://geodesic.mathdoc.fr/item/RM_1961_16_1_a18/