TY  - JOUR
AU  - Ya. Sh. Il'yasov
TI  - On the existence of periodic solutions of semilinear elliptic equations
JO  - Sbornik. Mathematics
PY  - 1994
SP  - 167
EP  - 178
VL  - 79
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/SM_1994_79_1_a10/
LA  - en
ID  - SM_1994_79_1_a10
ER  -