HULA, Róbert. Impact of the Military Crisis in Ukraine on the Development of the Prices of Selected Raw Materials of Chemical Production. In Studia commercialia Bratislavensia : Scientific Journal of Faculty of Commerce, University of Economics in Bratislava. - Bratislava : Ekonomická univerzita v Bratislave, 2022. ISSN 1339-3081, 2022, roč. 15, č. 4, s. 227-236. KEGA 032EU-4/2020.