%0 Journal Article %A A. I. Kamzolov %T Bernstein's inequality for fractional derivatives of~polynomials in spherical harmonics %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 1984 %P 163-164 %V 39 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/RM_1984_39_2_a16/ %G en %F RM_1984_39_2_a16