Милев, Ж. (2021) „The Pandemic Crisis and the Resulted Risks for the Fully Funded Pension Funds in Central and Eastern Europe“, Научни трудове, (2), стр. 203–216. достъпен на: https://bjiep.e-dnrs.org/index.php/rp/article/view/5305 (отворен на: 22 Юли 2026).