%0 Journal Article %A M. Michalski %T On a class of polynomially solvable travelling salesman problems %J Applicationes Mathematicae %D 1987 %P 531-539 %V 19 %N 3-4 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/am-19-3-4-531-539/ %R 10.4064/am-19-3-4-531-539 %G en %F 10_4064_am_19_3_4_531_539