%0 Journal Article %A A. S. Fokht %T Estimates for the derivatives of associated Legendre functions and ultraspherical polynomials in the metric $L_p$, $1 %J Differencialʹnye uravneniâ %D 1983 %P 718-720 %V 19 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1983_19_4_a29/ %G ru %F DE_1983_19_4_a29