Shaffer, Scott A. (2006). „Migratory shearwaters integrate oceanic resources across the Pacific Ocean in an endless summer”. Proceedings of the National Academy of Sciences of the United States of America103 (34), 12799–802. o. DOI:10.1073/pnas.0603715103. PMID16908846. PMC1568927.
Croxall, John P. (2005). „Global Circumnavigations: Tracking year-round ranges of nonbreeding Albatrosses”. Science307 (5707), 249–50. o. DOI:10.1126/science.1106042. PMID15653503.
Shaffer, Scott A. (2006). „Migratory shearwaters integrate oceanic resources across the Pacific Ocean in an endless summer”. Proceedings of the National Academy of Sciences of the United States of America103 (34), 12799–802. o. DOI:10.1073/pnas.0603715103. PMID16908846. PMC1568927.
Croxall, John P. (2005). „Global Circumnavigations: Tracking year-round ranges of nonbreeding Albatrosses”. Science307 (5707), 249–50. o. DOI:10.1126/science.1106042. PMID15653503.
Shaffer, Scott A. (2006). „Migratory shearwaters integrate oceanic resources across the Pacific Ocean in an endless summer”. Proceedings of the National Academy of Sciences of the United States of America103 (34), 12799–802. o. DOI:10.1073/pnas.0603715103. PMID16908846. PMC1568927.