LITVINENKO, Michail; PALŠAITIS, Ramūnas. Methodological aspects of a questionnaire researching transportation links. Transport, [S. l.], v. 20, n. 2, p. 78–82, 2005. DOI: 10.3846/16484142.2005.9638000. Disponível em: https://journals.vilniustech.lt/index.php/Transport/article/view/8333. Acesso em: 8 jun. 2025.