GÁL, Zoltán; RÁCZ, Szilárd. Research and development (R&D) activity in the Carpathian area. Discussion Papers, [S. l.], n. Special, p. 148–162, 2012. Disponível em: http://dp.rkk.hu/index.php/DP/article/view/2424. Acesso em: 4 apr. 2025.