Vladimirovich Serikov, A. and Sergeevna Panfilova, Y. 2018. Trends in the Development of Extremism Among Youth in Modern Russian Society: Internal and External Challenges to National Security. International Journal of Engineering & Technology. 7, 4.38 (Dec. 2018), 462–468. DOI:https://doi.org/10.14419/ijet.v7i4.38.24605.