%0 Journal Article %A R. Kh. Sadikova %T A general class of inequalities containing the Steffensen inequality and its generalization %J Izvestiâ vysših učebnyh zavedenij. Matematika %D 1980 %P 79-80 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/IVM_1980_4_a12/ %G ru %F IVM_1980_4_a12