Sajnóg, A. 2017. Management of Equity and Profitability of the Joint-Stock Companies Listed on the Frankfurt Stock Exchange and Warsaw Stock Exchange. Acta Universitatis Lodziensis. Folia Oeconomica. 4, 324 (Feb. 2017), [89]–108. DOI:https://doi.org/10.18778/0208-6018.324.06.