1. Andersen, P. K., Borgan, Ø., Gill, R. D. and Keiding, N. (1993).Statistical Models Based on Counting Processes, Springer, New York.
2. Athreya, K. B., and Keiding, N. (1977). Estimation theory for continuous-time branching processes,Sankhy? Ser. A,39, 101?123.
3. Basawa, I. V. and Becker, N. (1983). Remarks on optimal inference for Markov branching processes: a sequential approach,Austral. J. Statist.,25, 35?46.
4. Lecture Notes in Statist.;I. V. Basawa,1983
5. Borgan, Ø. (1984). Maximum likelihood estimation in parametric counting process models, with applications to censored failure time data,Scand. J. Statist.,11, 1?16 (Correction:ibid. (1984),11, p. 275).