@inproceedings{sgem2018S18045,
  title = {MIGRATION AND DEMOGRAPHIC CHALLENGES FOR BULGARIA},
  author = {Metodi Ivanov and K. Naydenov},
  booktitle = {5th International Multidisciplinary Scientific Conference on Social Sciences and Arts SGEM 2018},
  year = {2018},
  pages = {351-356},
  publisher = {STEF92 Technology},
  doi = {10.5593/sgemsocial2018/4.1/S18.045}
}