TÓTH-NAÁR, Zsuzsanna et al. Selected Reliable Indicators of Sustainable Land Management (SLM) in The European Union. In Visegrad Journal on Bioeconomy and Sustainable : International Scientific Journal. - Nitra : Slovak University of Agriculture in Nitra, 2017. ISSN 1339-3367, 2017, vol. 6, no. 2, s. 46-49.