ARNAUDOV, B. PERSPECTIVES AND INTEGRATION OF BICYCLE TRANSPORT IN SOFIA, BULGARIA. Proceedings of CBU in Economics and Business, [S. l.], v. 1, p. 1-7, 2020. DOI: 10.12955/peb.v1.8. Disponível em: https://ojs.cbuic.cz/index.php/peb/article/view/8. Acesso em: 5 nov. 2026.