Dorofeev, D., Y. Anisimov, O. Anisimova, and K. Litvin. “Number and Distribution of Barnacle Goose Branta Leucopsis Colonies on the Timansky Coast of the Barents Sea in 2009”. Ornis Norvegica, Vol. 36, Sept. 2013, pp. 25-27, doi:10.15845/on.v36i0.436.