TY - JOUR AU - Tineo, Antonio TI - Existence of solutions for a class of boundary value problems for the equation $x''=F(t, x, x', x'')$ JO - Commentationes Mathematicae Universitatis Carolinae PY - 1988 SP - 285 EP - 291 VL - 29 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/CMUC_1988__29_2_a11/ LA - en ID - CMUC_1988__29_2_a11 ER -