1. Aalen, O. O. (1975). Statistical inference for a family of counting processes. PhD thesis, University of California, Berkeley.
2. Aalen, O. O., & Tretli, S. (1999). Analysing incidence of testis cancer by means of a frailty model. Cancer Causes & Control, 10, 285–2992.
3. Aalen, O. O., Borgan, Ø., & Gjessing, H. K. (2008). Survival and event history analysis. New York: Springer.
4. Aalen, O. O., Andersen, P. K., Borgan, O., Gill, R. D., & Keiding, N. (2009). History of applications of martingales in survival analysis. Journal Electronique d’Histoire des Probabilités et de la Statistique, 5(1), 1–28.
5. Agazzi, E. (1985). Commensurability, incommensurability and cumulativity in scientific knowledge. Erkenntnis, 22(1–3), 51–77.