TY - JOUR AU - Greguš, Michal, Jr. TI - The existence of a solution of a nonlinear boundary value problem JO - Mathematica slovaca PY - 1980 SP - 127 EP - 132 VL - 30 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MASLO_1980__30_2_a3/ LA - en ID - MASLO_1980__30_2_a3 ER -