Heltai, M., F. Markolt, B. Tóth, G. Balázs, V. Grónás, and N. Bleier. “Evaluation of the Wildlife Management Practice of Liszt Ferenc International Airport”. Review on Agriculture and Rural Development, vol. 1, no. 1. suppl., Jan. 2012, pp. 278-83, https://ojs.bibl.u-szeged.hu/index.php/rard/article/view/13219.