中国科学院数学与系统科学研究院期刊网
AMS
Semiparametric Additive Intensity Model with Frailty for Recurrent Events
Yan Yan LIU, Yuan Shan WU
Acta Mathematica Sinica . 2011, (9): 1831 -1842 .  DOI: 10.1007/s10114-011-8232-x