TY  - JOUR
A1  - Lin, D.Y.
A1  - Wei, L.J.
T1  - The robust inference of the Cox Proportional Hazards model
Y1  - 1989
DO  - 10.2307/2290085
JF  - Journal of the American Statistical Association
VL  - 84
IS  - 408
SP  - 1074
EP  - -1078

ER  -