@article{Abrahantes2007,
title = {Comparison of different estimation procedures for proportional hazards model with random effects},
author = {Jos{\'e} Corti{\~n}as Abrahantes and Catherine Legrand and Tomasz Burzykowski and Paul Janssen and Vincent Ducrocq and Luc Duchateau},
day = {01},
journal = {Computational Statistics \& Data Analysis},
month = {May},
number = {8},
pages = {3913--3930},
url = {http://www.sciencedirect.com/science/article/B6V8V-4JT3NHW-3/1/3093f88c3f7c7ed1da03f4da8d1408da},
volume = {51},
year = {2007},
keywords = {Frailty model }
}
::