%0 Journal Article %A Lacko, VladimĂ­r %T Persistency in the Traveling Salesman Problem on Halin graphs %J Discussiones Mathematicae. Graph Theory %D 2000 %P 231-242 %V 20 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DMGT_2000_20_2_a6/ %G en %F DMGT_2000_20_2_a6