%0 Journal Article %A A. P. Buslaev %A V. A. Kondrat'ev %A A. I. Nazarov %T On a family of extremum problems and the properties of an integral %J Matematičeskie zametki %D 1998 %P 830-838 %V 64 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZM_1998_64_6_a3/ %G ru %F MZM_1998_64_6_a3