I. C. Todirica, B. C. Chiripuci, S. A. Toderasc. "MIGRATION OF POPULATION AND DEMOGRAPHIC BALANCE OF LAST YEARS." 5th International Multidisciplinary Scientific Conference on Social Sciences and Arts SGEM 2018 (2018): 121-128. https://doi.org/10.5593/sgemsocial2018/5.2/S19.014