Kočetova, Jelena, and Jonas Šiaulys. “Asymptotic Behavior of the Gerber–Shiu Discounted Penalty Function in the Erlang(2) Risk Process With Subexponential Claims”. Nonlinear Analysis: Modelling and Control 16, no. 3 (July 25, 2011): 315–331. Accessed July 18, 2024. https://www.journals.vu.lt/nonlinear-analysis/article/view/14095.