Alanna MitchelA., 2009. 6-Reading the vital signs: life force. pp.78. Halifax, Canada-The fate of the fish. Seasick: Ocean Change and the Extinction of Life on Earth. University of Chicago Press. Retrieved on 29 July 2014
MacKinnon B.J., 2013. The Nature of Nature. The Once and Future World: Nature as It Was, as It Is, as It Could Be. pp.100. Retrieved on 29 July 2014
doi.org
doi.org
Nikulina, E.A.; U. Schmölcke (2015). »First archaeogenetic results verify the mid-Holocene occurrence of Dalmatian pelican Pelecanus crispus far out of present range«. Journal of Avian Biology. 46 (4): 344–351. doi:10.1111/jav.00652.
Borcherding, J.; M. Heynen; T. Jäger-Kleinicke; H. V. Winter; and R. Eckmann (2010). Re-establishment of the North Sea houting in the River Rhine. Fisheries Management and Ecology 17(3): 291–293. DOI: 10.1111/j.1365-2400.2009.00710.x
»Poster«(PDF). 1998. Arhivirano iz prvotnega dne 2. maja 2017. Pridobljeno 4. novembra 2021.{{navedi splet}}: Vzdrževanje CS1: bot: neznano stanje prvotnega URL-ja (povezava)