%0 Journal Article %A Trenkler, Marián %T On the Face-Vector of a 5-Valent Convex 3-Polytope %J Mathematica slovaca %D 1975 %P 351-360 %V 25 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/MASLO_1975__25_4_a5/ %G en %F MASLO_1975__25_4_a5