VAN DER LIJN, Charlotte et al. Assessing travel time-based accessibility to outdoor ice skating fields for children in Helsinki during the COVID-19 pandemic. Fennia - International Journal of Geography, [S. l.], v. 200, n. 1, p. 6–23, 2022. DOI: 10.11143/fennia.114590. Disponível em: https://fennia.journal.fi/article/view/114590. Acesso em: 12 dec. 2025.