OKSANEN, E. H. Havaintoja pihatoista kylmillä seuduilla. Agricultural and Food Science, [S. l.], v. 25, n. 1, p. 93–98, 1953. DOI: 10.23986/afsci.71332. Disponível em: https://journal.fi/afs/article/view/71332. Acesso em: 17 may. 2024.