TY  - JOUR
AU  - Oláh, Rudolf
TI  - On positive solutions of nonlinear retarded differential equations
JO  - Mathematica slovaca
PY  - 1992
SP  - 201
EP  - 210
VL  - 42
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MASLO_1992__42_2_a7/
LA  - en
ID  - MASLO_1992__42_2_a7
ER  -