%0 Journal Article
%A Douglas M. Campbell
%A Gene H. Wickes
%T The spherical derivative and normal functions (II)
%J Annales Fennici Mathematici
%D 1977
%P 373-375
%V 3
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.5186/aasfm.1977.0302/
%R 10.5186/aasfm.1977.0302
%G en
%F AFM_1977_3_2_a14