%0 Journal Article %A Nebeský, Ladislav %T $N_2$-locally connected graphs and their upper embeddability %J Czechoslovak Mathematical Journal %D 1991 %P 731-735 %V 41 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1991.102504/ %R 10.21136/CMJ.1991.102504 %G en %F 10_21136_CMJ_1991_102504