TY  - JOUR
A1  - Grambsch, P.M.
A1  - Therrneau, T.M.
T1  - Proportional hazards tests and diagnostics based on weighted residuals
Y1  - 1994
DO  - 10.1093/biomet/81.3.515
JF  - Biometrika 
VL  - 81
IS  - 3

ER  -