Stoilov, Todor Atanasov, Stoilova, Krasimira Petrova, Vladimirov, Miroslav Dimitrov Analytical Overview and Applications of Modified Black-Litterman Model for Portfolio Optimization,
Inst. of Inform. a. Communication Technologies BAS, 2020, pp. 30 - 49, ISSN 1311-9702 (print) ; 1314-4081 (online).