TRÎMBIŢAŞ, Radu Tiberiu. PROCEEDINGS OF THE INTERNATIONAL SYMPOSIUM ON NUMERICAL ANALYSIS AND APPROXIMATION THEORY. [s.l.] : Presa Universitară Clujeană,2004. Disponível em: https://editura.ubbcluj.ro/index.php/puc/catalog/book/3717. Acesso em: 18 mar. 2026.