FIFEKOVÁ, Elena - NEŽINSKÝ, Eduard. Environmental Efficiency of European Economies. In BEE Conference. Business & Entrepreneurial Economics 2023. BEE Conference : The 8th Business & Entrepreneurial Economics 2023, 01-04 June, Brijuni National park, Croatia. - Zagreb : Student Business Incubator at the University of Zagreb, 2023. ISSN 2459-5225, pp. 92-100. VEGA 2/0001/22.