MAJEROWSKA, Ewa and GOSTKOWSKA-DRZEWICKA, Magdalena. Impact of the Sector and of Internal Factors on Profitability of the Companies Listed on the Warsaw Stock Exchange. Dynamic Econometric Models. Online. 28 December 2018. Vol. 18, pp. 115-127. [Accessed 18 July 2024]. DOI 10.12775/DEM.2018.007.