Anker-Nilssen Tycho, and Lorentsen Svein-Hakon. 1990. “Distribution of Puffins Fratercula Arctica Feeding off Røst, Northern Norway, During the Breeding Season, in Relation to Chick Growth, Prey and Oceanographical Parameters”. Polar Research 8 (1):67-76. https://doi.org/10.3402/polar.v8i1.6805.