%0 Journal Article %A J. Clunie %A W.K. Hayman %T The spherical derivative of integral and meromorphic functions. %J Commentarii mathematici Helvetici %D 1965 %P 117-148 %V 40 %I mathdoc %U http://geodesic.mathdoc.fr/item/CMH_1965__40_139298/ %F CMH_1965__40_139298