%0 Journal Article %A Nebeský, Ladislav %T On 2-cell embeddings of graphs with minimum numbers of regions %J Czechoslovak Mathematical Journal %D 1985 %P 625-631 %V 35 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1985.102053/ %R 10.21136/CMJ.1985.102053 %G en %F 10_21136_CMJ_1985_102053