%0 Journal Article %A I. S. Lomov %A V. V. Tikhomirov %T Estimates of root vectors of multipoint spectral problems %J Doklady Akademii Nauk %D 1988 %P 1304-1306 %V 303 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1988_303_6_a4/ %G ru %F DAN_1988_303_6_a4