%0 Journal Article
%A Kelman, Robert B.
%A Jr, Chester A. Koper
%T Least squares approximations for dual trigonometric series
%J Glasgow mathematical journal
%D 1973
%P 111-119
%V 14
%N 2
%U http://geodesic.mathdoc.fr/articles/10.1017/S0017089500001841/
%R 10.1017/S0017089500001841
%F 10_1017_S0017089500001841