1. A probabilistic approach to long term insurance (typically life insurance);Bühlmann;Transactions of the 20th International Congress of Actuaries, Tokyo,1976
2. A probabilistic model for (life) contingencies and a delta-free approach to contingency reserves (with discussion);Gerber;Transactions of the Society of Actuaries,1976
3. Das Risico bei der Lebensversicherung;Hattendorff;Masius' Rundschau der Versicherungen,1868
4. Hattendorff's theorem and Thiele's differential equation generalized;Norberg;Scandinavian Actuarial Journal,1992
5. Addendum to Hattendorff's theorem and Thiele's differential equation generalized, SAJ 1992, 2-14;Norberg;Scandinavian Actuarial Journal,1996