TY  - JOUR
AU  - I. N. Klimashevskaya
AU  - S. G. Kondratenya
TI  - Elementary classes of autonomous systems of two differential equations that do not have solutions with movable nonalgebraic singular points
JO  - Differencialʹnye uravneniâ
PY  - 1991
SP  - 535
EP  - 537
VL  - 27
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1991_27_3_a21/
LA  - ru
ID  - DE_1991_27_3_a21
ER  -