%0 Journal Article %A S. G. Tuleneva %A V. M. Fishman %A S. K. Zyuganov %T Construction of accessible boundaries of velocity section feasible area within the framework of $\tau$-method %J Doklady Akademii Nauk %D 1989 %P 1107-1111 %V 308 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1989_308_5_a19/ %G ru %F DAN_1989_308_5_a19