%0 Journal Article
%A Stephan Ruscheweyh
%A C. Luis Salinas
%T On the preservation of direction-convexity and the Goodman-Saff conjecture
%J Annales Fennici Mathematici
%D 1989
%P 63-73
%V 14
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.5186/aasfm.1989.1427/
%R 10.5186/aasfm.1989.1427
%G en
%F AFM_1989_14_1_a6