Markhgeym, M.V. , Novikova, A.E. , Tonkov, E.E. , Gutorova, A.N. and Tsaliev, A.M. 2022. Protection Indicator in the Constitutions of the European Federations. International Journal of Criminology and Sociology. 9, (Apr. 2022), 2342–2346. DOI:https://doi.org/10.6000/1929-4409.2020.09.282.