Herfindahl-Hirschman index level of concentration values modification and analysis of their change. - Ivan Brezina; Juraj Pekár; Zuzana Cicková; Marian Reiff (Central Eur. J. Oper. Res., 2016)

Portfolio performance measurement using differential evolution. - Juraj Pekár; Zuzana Cicková; Ivan Brezina (Central Eur. J. Oper. Res., 2016)

Empirical distribution of daily stock returns of selected developing and emerging markets with application to financial risk management. - Juraj Pekár; Mário Pcolár (Central Eur. J. Oper. Res., 2022)