BÖCHER, T. W. Ecogeographical classification of Arctic vegetation based on shoots density determinations. Meddelelser om Grønland, [S. l.], v. 199, n. 6, p. 61 pp., 1977. Disponível em: https://tidsskrift.dk/meddrgroenland/article/view/147721. Acesso em: 18 sep. 2024.