%0 Journal Article
%A Sproston, J. P.
%T Derivations and pure states
%J Glasgow mathematical journal
%D 1977
%P 73-77
%V 18
%N 1
%U http://geodesic.mathdoc.fr/articles/10.1017/S0017089500003050/
%R 10.1017/S0017089500003050
%F 10_1017_S0017089500003050