SOLOVYEVA, Diana V.; KOYAMA, Kazuo; VARTANYAN, Sergey. Living child-free: proposal for density-dependent regulation in Bewick’s Swans Cygnus columbianus bewickii. Wildfowl, [S. l.], p. 197–210, 2019. Disponível em: https://tidsskrift.dk/Wildfowl/article/view/154481. Acesso em: 16 dec. 2025.