HELBRECHT, I.; IZSÁK, Éva; DIRKSMEIER, P.; BERKI, M.; SCHLUETER, S. The changing nature of labour protest: Comparing the fragmentation of protest rituals on May 1st in Berlin and Budapest. Hungarian Geographical Bulletin, [S. l.], v. 66, n. 2, p. 95–111, 2017. DOI: 10.15201/hungeobull.66.2.1. Disponível em: https://ojs.mtak.hu/index.php/hungeobull/article/view/551. Acesso em: 8 nov. 2026.