Direction fields on~2-manifolds
Izvestiâ vysših učebnyh zavedenij. Matematika, no. 7 (1975), pp. 80-91
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@article{IVM_1975_7_a9,
author = {Ya. L. Shapiro and S. E. Landa},
title = {Direction fields on~2-manifolds},
journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
pages = {80--91},
publisher = {mathdoc},
number = {7},
year = {1975},
language = {ru},
url = {http://geodesic.mathdoc.fr/item/IVM_1975_7_a9/}
}
Ya. L. Shapiro; S. E. Landa. Direction fields on~2-manifolds. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 7 (1975), pp. 80-91. http://geodesic.mathdoc.fr/item/IVM_1975_7_a9/