%0 Journal Article %A V. V. Lukyanov %T Two-dimensional $\mathrm T$-systems of functions and their application for research of time optimal linear nonstationary control systems %J Vestnik Udmurtskogo universiteta. Matematika, mehanika, kompʹûternye nauki %D 2009 %P 101-130 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/VUU_2009_1_a4/ %G ru %F VUU_2009_1_a4