@article{Prentice1978,
author = {Prentice, R. and Kalbfleisch, J. and Peterson, A. and Flournoy, N. and Farewell, V. and Breslow, N.},
title= {The analysis of failure time data in the presence of competing risks},
year = {1978},
journal = {Biometrics},
volume = {34},
number = {4},
pages = {541--554},
}