T. Medaiskis, T. Gudaitis, and J. Mečkovski, “OPTIMAL LIFE-CYCLE INVESTMENT STRATEGY IN LITHUANIAN SECOND PENSION PILLAR”, Int. J. Econ. Sci., vol. 7, no. 2, pp. 70–86, Nov. 2018, doi: 10.20472/ES.2018.7.2.004.