1. A generalization of the collective theory of risk in regard to fluctuating basic probabilities;Ammeter;Skandinavisk Aktuarietidskrift,1948
2. Risk theory in a Markovian environment;Asmussen;Scandinavian Actuarial Journal,1989
3. Ruin probabilities;Asmussen,1994
4. Exponential inequalities for ruin probabilities in the Cox case;Björk;Scandinavian Actuarial Journal,1988
5. Risk theory for the compound Poisson process that is perturbed by diffusion;Dufresne;Insurance: Mathematics and Economics,1991