%0 Journal Article %A S. V. Sevast'yanov %T Nonstrict summation of vectors in the plane, and its application in problems of scheduling theory %J Diskretnyj analiz i issledovanie operacij %D 1995 %P 69-100 %V 2 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DA_1995_2_2_a5/ %G ru %F DA_1995_2_2_a5