%0 Journal Article %A Bielak, Halina %T A note on the Ramsey number and the planar Ramsey number for C₄ and complete graphs %J Discussiones Mathematicae. Graph Theory %D 1999 %P 135-142 %V 19 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DMGT_1999_19_2_a1/ %G en %F DMGT_1999_19_2_a1