COBZAȘ, Ștefan. TOPICS IN MATHEMATICS, COMPUTER SCIENCE AND PHILOSOPHY. A Festschrift for Wolfgang W. Breckner on his 65th Anniversary. [s.l.] : Presa Universitară Clujeană,2008. Disponível em: https://editura.ubbcluj.ro/index.php/puc/catalog/book/759. Acesso em: 19 mar. 2026.