Steen J. B., & Gabrielsen G. W. (1986). Thermogenesis in newly hatched eider (Somateria mollissima) and Long-tailed duck (Clangula hyemalis) ducklings and barnacle goose (Granta leucopsis) goslings. Polar Research, 4(2), 181-186. https://doi.org/10.3402/polar.v4i2.6930