TY  - JOUR
AU  - Kopp, P. E.
TI  - A ratio limit theorem for contraction projections and applications
JO  - Glasgow mathematical journal
PY  - 1973
SP  - 80
EP  - 85
VL  - 14
IS  - 1
UR  - http://geodesic.mathdoc.fr/articles/10.1017/S0017089500001774/
DO  - 10.1017/S0017089500001774
ID  - 10_1017_S0017089500001774
ER  -