%0 Journal Article %A Ratanaprasert, Chawewan %T Graph isomorphism of ordered sets %J Mathematica slovaca %D 2002 %P 491-499 %V 52 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/MASLO_2002__52_5_a0/ %G en %F MASLO_2002__52_5_a0