Modelling bid-ask spread conditional distributions using hierarchical correlation reconstruction. - Jaroslaw Duda 001; Robert Syrek; Henryk Gurgul (CoRR, 2019)

Multi-feature evaluation of financial contagion. - Jaroslaw Duda 001; Henryk Gurgul; Robert Syrek (Central Eur. J. Oper. Res., 2022)

Contagion between selected European indexes during the Covid-19 pandemic. - Henryk Gurgul; Robert Syrek (Oper. Res. Decis., 2023)