1. American Academy of Actuaries: Recommended approach for setting regulatory risk-based capital requirements for variable annuities and similar products. Report, American Academy of Actuaries, Boston (2005)
2. Autorité de Controlé Prudentiel: https://acpr.banque-france.fr/sites/default/files/20130527-onc-2013_0.pdf. Accessed 20 Sept. (2019)
3. Baione, F., Biancalana, D., De Angelis, P., Granito, I.: Dynamic policyholder behavior and surrender option evaluation for life insurance. In: Corazza, M., Durbán, M., Grané, A., Perna, C., Sibillo, M. (eds.) Mathematical and Statistical Methods for Actuarial Sciences and Finance. Springer, Cham (2018)
4. Bardsley, W.G., Childs, R.E.: Sigmoid curves, non-linear double-reciprocal plots and allosterism. Biochem. J. 149, 313–328 (1975)
5. Bates, D.M., Watts, D.G.: Nonlinear Regression Analysis and Its Applications. Computer Science. Wiley, Berlin (1988)