Ichthyostegalia (Ukrainian Wikipedia)

Analysis of information sources in references of the Wikipedia article "Ichthyostegalia" in Ukrainian language version.

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Niedźwiedzki (2010). Tetrapod trackways from the early Middle Devonian period of Poland. Nature. 463: 43—48. doi:10.1038/nature08623. PMID 20054388.

Niedźwiedzki (2010). Tetrapod trackways from the early Middle Devonian period of Poland. Nature. 463: 43—48. doi:10.1038/nature08623. PMID 20054388.

Uppsala University (2010, January 8). Fossil footprints give land vertebrates a much longer history. ScienceDaily. Retrieved January 8, 2010, from http://www.sciencedaily.com [Архівовано 25 січня 2018 у Wayback Machine.] /releases/2010/01/100107114420.htm

Uppsala University (2010, January 8). Fossil footprints give land vertebrates a much longer history. ScienceDaily. Retrieved January 8, 2010, from http://www.sciencedaily.com [Архівовано 25 січня 2018 у Wayback Machine.] /releases/2010/01/100107114420.htm
Ichthyostegalia [Архівовано 3 лютого 2014 у Wayback Machine.] BioLib, 2009-04-17