%0 Journal Article %A Zelinka, Bohdan %T A distance between isomorphism classes of trees %J Czechoslovak Mathematical Journal %D 1983 %P 126-130 %V 33 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1983.101863/ %R 10.21136/CMJ.1983.101863 %G en %F 10_21136_CMJ_1983_101863