ENHÖRNING, Gunilla. I. Bākule and A. Siksna (2009) Riga beyond the walls. Urban Morphology, [S. l.], v. 16, n. 1, p. 87–88, 2012. DOI: 10.51347/jum.v16i1.4894. Disponível em: https://journal.urbanform.org/index.php/jum/article/view/4894. Acesso em: 23 apr. 2026.