1University of California, Berkeley, California 94720, USA
Tài liệu tham khảo
Chiang, 1964, A stochastic model of competing risks of illness and competing risks of death, 325
Chiang, 1968
Chung, 1960
Feller, 1968, Vol. 1
Karlin, 1966
Gantmacher, 1960, Vol. I