%0 Journal Article %A J. Kucharczyk %A Danuta Machulec %A J. Węgierski %T Congestion studies in railway stations and yards by digital simulation (I) %J Applicationes Mathematicae %D 1971 %P 79-89 %V 12 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/am-12-1-79-89/ %R 10.4064/am-12-1-79-89 %G en %F 10_4064_am_12_1_79_89