P. I. Otiman, N. Mateoc-S?rb, C. Manescu, T. Mateoc, V. Gosa, și A. Banes, „A Study of Romania’s Territorial Division and Regional Development”, rcis, vol. 43, pp. 80–99, dec. 2013, Data accesării: nov. 06, 2026. Disponibil la: https://www.rcis.ro/journal/article/view/1234-a-study-of-romanias-territorial-division-and-regional