%0 Journal Article
%A Nakai, Mitsuru
%A Sario, Leo
%T Construction of Principal Functions by Orthogonal Projection
%J Canadian journal of mathematics
%D 1966
%P 887-896
%V 18
%N 1
%U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1966-089-4/
%R 10.4153/CJM-1966-089-4
%F 10_4153_CJM_1966_089_4