KÁSA, Z. (2002) 200 ÉVE SZÜLETETT BOLYAI JÁNOS - 200 DE ANI DE LA NAŞTEREA LUI JÁNOS BOLYAI - 200 YEARS SINCE THE BIRTH OF JÁNOS BOLYAI. Presa Universitară Clujeană. Available at: https://editura.ubbcluj.ro/index.php/puc/catalog/book/430 (Accessed: 17 May 2026).