1. Planning outstanding reserves in general insurance
2. Claim reserving estimation by using the chain ladder method
3. Bente C., (2016), Basic Chain Ladder Method Versus Inflation Adjusted Chain Ladder, Annals of Faculty of Economics, University of Oradea, Faculty of Economics, vol. 1(2), pages 343–354.
4. Official site of Financial Supervision Commission, http://www.fsc.bg.
5. https://www.nsi.bg/bg/content