TY  - JOUR
AU  - V. N. Laptinskii
TI  - A certain matrix method in the theory of oscillations
JO  - Differencialʹnye uravneniâ
PY  - 1971
SP  - 1819
EP  - 1824
VL  - 7
IS  - 10
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1971_7_10_a7/
LA  - ru
ID  - DE_1971_7_10_a7
ER  -