%0 Journal Article %A B. Zelinka %T Block-closed subgraphs and q-partitions of graphs %J Applicationes Mathematicae %D 1987 %P 629-634 %V 19 %N 3-4 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/am-19-3-4-629-634/ %R 10.4064/am-19-3-4-629-634 %G en %F 10_4064_am_19_3_4_629_634