MIERZEJEWSKA, L. Safety of Poznań residents after 1989 (selected aspects). Rozwój Regionalny i Polityka Regionalna, [S. l.], n. 32, p. 173–186, 2015. Disponível em: https://pressto.amu.edu.pl/index.php/rrpr/article/view/8648. Acesso em: 6 grudz. 2022.