Dúbravková-Michálková, D., M. Janišová, J. Kolbek, R. Šuvada, V. Virók, and M. Zaliberová. “Dry Grasslands in the Slovenský Kras Mts (Slovakia) and the Aggteleki-Karszt Mts (Hungary) – a comparison of Two Classificati on Approaches”. Hacquetia, vol. 7, no. 2, Sept. 2015, doi:10.2478/v10028-008-0007-2.