TY  - JOUR
AU  - N. Satimov
TI  - The composition of a differential equation from its solutions, and the proof of a lemma of L.\,S.~Pontrjagin
JO  - Differencialʹnye uravneniâ
PY  - 1978
SP  - 1208
EP  - 1214
VL  - 14
IS  - 7
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1978_14_7_a7/
LA  - ru
ID  - DE_1978_14_7_a7
ER  -