%0 Journal Article %A Johnson, C. S., Jr. %A McMorris, F. R. %T A note on two comparability graphs %J Mathematica slovaca %D 1982 %P 61-62 %V 32 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/MASLO_1982__32_1_a5/ %G en %F MASLO_1982__32_1_a5