%0 Journal Article %A E. L. Presman %T Time of stay of a~system in a~faulty state %J Informatics and Automation %D 1964 %P 78-81 %V 71 %I mathdoc %U http://geodesic.mathdoc.fr/item/TRSPY_1964_71_a8/ %G ru %F TRSPY_1964_71_a8