PULLIAINEN, E. Heart/body weight ratio in the Willow Grouse Lagopus lagopus and Rock Ptarmigan Lagopus mutus in Finnish Lapland. Ornis Fennica, [S. l.], v. 57, n. 2, p. 88–90, 1980. Disponível em: https://ornisfennica.journal.fi/article/view/133039. Acesso em: 18 may. 2024.