TY  - JOUR
AU  - Sproston, J. P.
TI  - Derivations and pure states
JO  - Glasgow mathematical journal
PY  - 1977
SP  - 73
EP  - 77
VL  - 18
IS  - 1
UR  - http://geodesic.mathdoc.fr/articles/10.1017/S0017089500003050/
DO  - 10.1017/S0017089500003050
ID  - 10_1017_S0017089500003050
ER  -