%0 Journal Article
%A Jonker, Leo B.
%T Immersions with Semi-Definite Second Fundamental Forms
%J Canadian journal of mathematics
%D 1975
%P 610-617
%V 27
%N 3
%U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1975-071-9/
%R 10.4153/CJM-1975-071-9
%F 10_4153_CJM_1975_071_9