%0 Journal Article %A Cerdeira, J. Orestes %T On the complexity of covering nodes by K node-disjoint cycles %J Portugaliae mathematica %D 1988 %P 25-27 %V 45 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/PORMA_1988__45_1_115605/ %G en %F PORMA_1988__45_1_115605