1. Nonparametric estimation of partial transition probabilities in multiple decrement models;Aalen;The Annals of Statistics,1978
2. Survival and Event History Analysis
3. An empirical transition matrix for non-homogeneous Markov chains based on censored observations;Aalen;Scandinavian Journal of Statistics,1978
4. Allignol, A. (2008). etm: Empirical Transition Matrix. R package version 0.3-2.
5. mvna: An R package for the Nelson-Aalen estimator in multistate models;Allignol;R News,2008