Michel, Małgorzata, and Iwona Moksa. “Dualism of the System of Social Standards and Values With the Example of Understanding of Patriotism by Football Hooligans and Manifestations of Behaviour Radicalization”. Nauki O Wychowaniu. Studia Interdyscyplinarne, vol. 9, no. 2, Feb. 2020, pp. 157-75, doi:10.18778/2450-4491.09.11.