Boiarov, Viktor, Mikhail Larkin, Kyrylo Legkykh, Oleksandr Melkovskyi, y Maryna Hromova. «Ways of Prevention of Funding for Youth Informal Groups of Extremist Orientation». Amazonia Investiga 8, no. 24 (noviembre 21, 2019): 479–483. Accedido diciembre 19, 2025. https://mail.amazoniainvestiga.info/index.php/amazonia/article/view/1007.