%0 Journal Article %A T. I. Encheva %A A. Iu. Levin %T Zeros of Quasi-Polynomials and Linear Time-Optimal Control Problem %J Mathematica balkanica %D 1988 %P 296 %V 2 %N 3-4 %I mathdoc %U http://geodesic.mathdoc.fr/item/MABA_1988_2_3-4_a3/ %F MABA_1988_2_3-4_a3