LACKO, Roman - HAJDUOVÁ, Zuzana - MARKOVIČ, Peter. Socioeconomic Determinants of Environmental Efficiency: The Case of the European Union. - Registrovaný: Scopus. In Environmental Science and Pollution Research. - Heidelberg : Springer. ISSN 1614-7499, 2023, vol. 30, no. 11, pp. 31320-31331. VEGA 1/0240/20.