TY - JOUR AU - V. Tikhomirov AU - A. Kochurov TI - Kolmogorov-type inequalities on the whole line or half line and the Lagrange principle in the theory of extremum problems JO - Eurasian mathematical journal PY - 2011 SP - 125 EP - 142 VL - 2 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/EMJ_2011_2_3_a7/ LA - en ID - EMJ_2011_2_3_a7 ER -