%0 Journal Article %A Malik, M.A. %T On Extremal Properties of the Derivatives of Polynomials and Rational Functions %J Canadian mathematical bulletin %D 1964 %P 121-131 %V 7 %N 1 %U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1964-014-4/ %R 10.4153/CMB-1964-014-4 %F 10_4153_CMB_1964_014_4