TY  - JOUR
AU  - A. V. Lasunsky
TI  - The small change of characteristic exponents of a linear second-order system
JO  - Differencialʹnye uravneniâ
PY  - 1982
SP  - 1824
EP  - 1825
VL  - 18
IS  - 10
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1982_18_10_a23/
LA  - ru
ID  - DE_1982_18_10_a23
ER  -