TY  - JOUR
AU  - O'Regan, Donal
TI  - Landesman Lazer type results for first order periodic problems
JO  - Commentationes Mathematicae Universitatis Carolinae
PY  - 1997
SP  - 297
EP  - 308
VL  - 38
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/CMUC_1997__38_2_a10/
LA  - en
ID  - CMUC_1997__38_2_a10
ER  -