Markhgeym, M. V., A. N. Nifanov, A. E. Novikova, O. N. Poluhin, and E. E. Tonkov. “Territory in the Constitutional Standards of Unitary States”. Journal of History Culture and Art Research, vol. 6, no. 3, June 2017, pp. 1546-54, doi:10.7596/taksad.v6i3.1026.