Pintér, Ákos, and Ádám Köbli. “The Role of Aviation in the Life of Spa Cities Located in Zala County”. GEORGIKON FOR AGRICULTURE 24, no. 4 (December 31, 2020): 71–87. Accessed December 5, 2025. https://journal.uni-mate.hu/index.php/gfa/article/view/6219.