TY  - JOUR
AU  - V. P. Prokop'ev
TI  - The stability of motion in the critical case of $2k$ zero roots
JO  - Differencialʹnye uravneniâ
PY  - 1973
SP  - 383
EP  - 385
VL  - 9
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1973_9_2_a27/
LA  - ru
ID  - DE_1973_9_2_a27
ER  -