RYYNÄNEN, V. Lammastalouden kannattavuudesta Helsingin yliopiston Malminkartanon tilalla. Agricultural and Food Science, [S. l.], v. 41, n. 2, p. 105–122, 1969. DOI: 10.23986/afsci.71730. Disponível em: https://journal.fi/afs/article/view/71730. Acesso em: 20 may. 2024.