NICOARĂ, L., and S. FILIP. “GEODEMOGRAPHIC STRUCTURES IN SATU MARE COUNTY. SEX AND AGE STRUCTURES OF THE POPULATION”. Studia Universitatis Babeș-Bolyai Geographia, vol. 61, no. 1, Apr. 2016, pp. 39-50, http://193.231.18.162/index.php/subbgeographia/article/view/5610.