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@article{DAN_1979_244_4_a7,
author = {Le Khyu Zien and V. I. Shevchenko},
title = {Homotopy classification of systems in the plane that are elliptic in the sense of {Douglis} and {Nirenberg}},
journal = {Doklady Akademii Nauk},
pages = {824--827},
publisher = {mathdoc},
volume = {244},
number = {4},
year = {1979},
language = {ru},
url = {http://geodesic.mathdoc.fr/item/DAN_1979_244_4_a7/}
}
TY - JOUR AU - Le Khyu Zien AU - V. I. Shevchenko TI - Homotopy classification of systems in the plane that are elliptic in the sense of Douglis and Nirenberg JO - Doklady Akademii Nauk PY - 1979 SP - 824 EP - 827 VL - 244 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1979_244_4_a7/ LA - ru ID - DAN_1979_244_4_a7 ER -
%0 Journal Article %A Le Khyu Zien %A V. I. Shevchenko %T Homotopy classification of systems in the plane that are elliptic in the sense of Douglis and Nirenberg %J Doklady Akademii Nauk %D 1979 %P 824-827 %V 244 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1979_244_4_a7/ %G ru %F DAN_1979_244_4_a7
Le Khyu Zien; V. I. Shevchenko. Homotopy classification of systems in the plane that are elliptic in the sense of Douglis and Nirenberg. Doklady Akademii Nauk, Tome 244 (1979) no. 4, pp. 824-827. http://geodesic.mathdoc.fr/item/DAN_1979_244_4_a7/