TY  - JOUR
AU  - A. D. Myshkis
AU  - V. G. Èventov
TI  - A geometric treatment of the oscillatory properties of third order linear differential equations
JO  - Differencialʹnye uravneniâ
PY  - 1977
SP  - 1047
EP  - 1052
VL  - 13
IS  - 6
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1977_13_6_a8/
LA  - ru
ID  - DE_1977_13_6_a8
ER  -