%0 Journal Article
%A L.L. Keener
%A W.H. Ling
%T Approximation under an arc length constraint. (Short Communiaction).
%J Aequationes mathematicae
%D 1977
%P 194-194
%V 16
%I mathdoc
%U http://geodesic.mathdoc.fr/item/AM2_1977__16_136694/
%F AM2_1977__16_136694