A~differential-variational equation
Trudy Matematicheskogo Instituta imeni V.A. Steklova, Tome 21 (1966) no. 5
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@article{RM_1966_21_5_a20,
author = {I. M. Koval'chik},
title = {A~differential-variational equation},
journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
publisher = {mathdoc},
volume = {21},
number = {5},
year = {1966},
language = {ru},
url = {http://geodesic.mathdoc.fr/item/RM_1966_21_5_a20/}
}
I. M. Koval'chik. A~differential-variational equation. Trudy Matematicheskogo Instituta imeni V.A. Steklova, Tome 21 (1966) no. 5. http://geodesic.mathdoc.fr/item/RM_1966_21_5_a20/