Y. V. Krasnov, R. T. Barrett, and N. G. Nikolaeva, “Status of black-legged kittiwakes (Rissa tridactyla), commonguillemots (Uria aalge) and Brünnich’s guillemots (U. lomvia) in Murman, north-west Russia, and Varanger, north-east Norway”, polar, vol. 26, no. 2, pp. 113-117, Sep. 2007.