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2. Census and Monitoring of Puffins Fratercula arctica on Rost, N Norway, 1979-1988
3. Hekkebiologiske langtidsstudier av lunder på Røst.;Anker‐Nilssen T.;(In Norwegian with English summary: Long‐term studies of the breeding biology of Puffins at Røst) ‐ NINA Fagrapport,1995
4. Census methods for murres, Uria species; a unified approach.;Birkhead T.R.;Canadian Wildlife Service Occasional Paper,1980
5. Polarlomvien, Uria lomvia (L.) som rugefugl i Norge. (In Norwegian with English summary: Briinnich's guillemot, Uria lomvia (L.) as a breeding‐bird in Norway);Brun E.;Sterna,1965