GÁLL, Jozef. Identification of the Level of Development and the Current State of the Tourism in Slovak Regions. In Czech Journal of Tourism. - Brno : Masarykova univerzita. Ekonomicko-správní fakulta, 2023. ISBN 978-80-280-0463-7. ISSN 1805-9767, pp. 20-34. VEGA 1/0271/23.