TY - JOUR AU - Fečkan, Michal TI - Positive solutions of a certain type of two-point boundary value problems JO - Mathematica slovaca PY - 1991 SP - 179 EP - 187 VL - 41 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MASLO_1991__41_2_a5/ LA - en ID - MASLO_1991__41_2_a5 ER -