Edikan E. Akpanibah and  Okwigbedi Oghen’Oro,  Optimal Portfolio Selection in a DC Pension with Multiple Contributors and the Impact of Stochastic Additional Voluntary Contribution on the Optimal Investment Strategy.   journal   = {International Journal of Mathematical and Computational Sciences}, [online]. World Academy of Science, Engineering and Technology.
    March 2018, vol. 133(1). 14 - 19
    [viewed 26 April 2024]. Available from: https://publications.waset.org/pdf/10008892.