TY  - JOUR
AU  - Lamb, Charles W.
TI  - A Ratio Limit Theorem for Approximate Martingales
JO  - Canadian journal of mathematics
PY  - 1973
SP  - 772
EP  - 779
VL  - 25
IS  - 4
UR  - http://geodesic.mathdoc.fr/articles/10.4153/CJM-1973-079-6/
DO  - 10.4153/CJM-1973-079-6
ID  - 10_4153_CJM_1973_079_6
ER  -