%0 Journal Article %A B. KopociƄski %T Some estimations of system reliability with positively dependent survival times of critical paths %J Applicationes Mathematicae %D 1977 %P 561-564 %V 16 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/am-16-4-561-564/ %R 10.4064/am-16-4-561-564 %G en %F 10_4064_am_16_4_561_564