Stoilov, Todor Atanasov, Stoilova, Krasimira Petrova, Vladimirov, Miroslav Dimitrov The Probabilistic Risk Measure VaR as Constraint in Portfolio Optimization Problem,
Inst. of Inform. a. Communication Technologies.BAS, 2021, pp. 19-31, ISSN 1311-9702 (print) ; 1314-4081 (online).