%0 Journal Article %A B. M. Shumilov %T On Lagrange interpolation by parabolic splines with additional knots %J Izvestiâ vysših učebnyh zavedenij. Matematika %D 1987 %P 58-62 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/IVM_1987_1_a9/ %G ru %F IVM_1987_1_a9