%0 Journal Article %A M. F. Kotsur %T Bounds of starlikeness and convexity for certain special classes of analytic functions in the disc %J Izvestiâ vysših učebnyh zavedenij. Matematika %D 1977 %P 57-60 %N 7 %I mathdoc %U http://geodesic.mathdoc.fr/item/IVM_1977_7_a7/ %G ru %F IVM_1977_7_a7