%0 Journal Article %A Rusnák, Ján %T Existence theorems for a certain nonlinear boundary value problem of the third order %J Mathematica slovaca %D 1987 %P 351-356 %V 37 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/MASLO_1987__37_4_a3/ %G en %F MASLO_1987__37_4_a3