DUCKWORTH, J W; CHOL, Kim. Scaly-sided Mergansers Mergus squamatus on the lower Chongchon River, central Korea. Wildfowl, [S. l.], p. 133–142, 2013. Disponível em: https://tidsskrift.dk/Wildfowl/article/view/153926. Acesso em: 13 feb. 2026.