%0 Journal Article %A A. G. Chentsov %T To the validity of constraints in the class of generalized elements %J Vestnik Udmurtskogo universiteta. Matematika, mehanika, kompʹûternye nauki %D 2014 %P 90-109 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/VUU_2014_3_a8/ %G ru %F VUU_2014_3_a8