%0 Journal Article %A E. A. Sinev %T On the simultaneous orthogonality of polynomials and their derivatives %J Izvestiâ vysših učebnyh zavedenij. Matematika %D 1961 %P 147-154 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/IVM_1961_2_a14/ %G ru %F IVM_1961_2_a14