%0 Journal Article
%A V. V. Tikhomirov
%T On the choice of the length of approximation interval in the estimation of a derivative in control problems
%J Vestnik Moskovskogo universiteta. Matematika, mehanika
%D 1984
%P 45-48
%N 1
%U http://geodesic.mathdoc.fr/item/VMUMM_1984_1_a9/
%G ru
%F VMUMM_1984_1_a9