The existence of mappings on the plane for degenerate first order elliptic systems
Doklady Akademii Nauk, Tome 191 (1970) no. 3, pp. 526-529
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@article{DAN_1970_191_3_a6,
author = {I. S. Ovchinnikov},
title = {The existence of mappings on the plane for degenerate first order elliptic systems},
journal = {Doklady Akademii Nauk},
pages = {526--529},
publisher = {mathdoc},
volume = {191},
number = {3},
year = {1970},
language = {ru},
url = {http://geodesic.mathdoc.fr/item/DAN_1970_191_3_a6/}
}
I. S. Ovchinnikov. The existence of mappings on the plane for degenerate first order elliptic systems. Doklady Akademii Nauk, Tome 191 (1970) no. 3, pp. 526-529. http://geodesic.mathdoc.fr/item/DAN_1970_191_3_a6/