TY  - JOUR
AU  - S. V. Zelik
TI  - The Mathieu--Hill operator equation with dissipation and estimates of its instability index
JO  - Matematičeskie zametki
PY  - 1997
SP  - 543
EP  - 560
VL  - 61
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MZM_1997_61_4_a5/
LA  - ru
ID  - MZM_1997_61_4_a5
ER  -