Differencialʹnye uravneniâ, Tome 14 (1978) no. 12, pp. 2185-2189
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A. P. Sadovskii. Formal transformations and the problem of distinguishing the center and focus. Differencialʹnye uravneniâ, Tome 14 (1978) no. 12, pp. 2185-2189. http://geodesic.mathdoc.fr/item/DE_1978_14_12_a10/
@article{DE_1978_14_12_a10,
author = {A. P. Sadovskii},
title = {Formal transformations and the problem of distinguishing the center and focus},
journal = {Differencialʹnye uravneni\^a},
pages = {2185--2189},
year = {1978},
volume = {14},
number = {12},
language = {ru},
url = {http://geodesic.mathdoc.fr/item/DE_1978_14_12_a10/}
}
TY - JOUR
AU - A. P. Sadovskii
TI - Formal transformations and the problem of distinguishing the center and focus
JO - Differencialʹnye uravneniâ
PY - 1978
SP - 2185
EP - 2189
VL - 14
IS - 12
UR - http://geodesic.mathdoc.fr/item/DE_1978_14_12_a10/
LA - ru
ID - DE_1978_14_12_a10
ER -
%0 Journal Article
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%T Formal transformations and the problem of distinguishing the center and focus
%J Differencialʹnye uravneniâ
%D 1978
%P 2185-2189
%V 14
%N 12
%U http://geodesic.mathdoc.fr/item/DE_1978_14_12_a10/
%G ru
%F DE_1978_14_12_a10
