Dhaene, J. L. M., & Goovaerts, M. J. (1995). On the dependency of risks in the individual life model. (Onderzoeksrapport D.T.E.W.; No. 9539). KU Leuven.
Goovaerts, M. J., & Dhaene, J. L. M. (1995). Dependency of risks and stop-loss order. (Onderzoeksrapport D.T.E.W.; No. 9545). K.U. Leuven.