Muzychuk, Oleksandr, Olha Bezpalova, Kateryna Rudoi, and Lidija Kalenichenko. “International Experience of Ensuring Public Safety and Order by Police Forces During Mass Events and the Possibility of Its Application in Ukraine”. Amazonia Investiga 9, no. 25 (January 25, 2020): 493-499. Accessed April 19, 2024. https://amazoniainvestiga.info/index.php/amazonia/article/view/1099.