POP, A. (2016) “Foreword Anniversary of Professor Sorin Dan ANGHEL”, Studia Universitatis Babeș-Bolyai Physica, 61(2), pp. 5–6. Available at: https://studia.reviste.ubbcluj.ro/index.php/subbphysica/article/view/5850 (Accessed: 11 February 2025).