I. M. BALOG, I. LUMPERDEAN, R. GRÄF, and I. BOLOVAN, ROMANIAN JOURNAL OF POPULATION STUDIES, SUPPLEMENT. 2011, (POPULATION AND ECONOMY. RURAL AND URBAN INSTANCES). Presa Universitară Clujeană, 2012. Accessed: Mar. 17, 2026. [Online]. Available: https://editura.ubbcluj.ro/index.php/puc/catalog/book/1228