Pteridophyta (Italian Wikipedia)

Analysis of information sources in references of the Wikipedia article "Pteridophyta" in Italian language version.

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Kathleen M. Pryer, Eric Schuettpelz e Paul G. Wolf, Phylogeny and evolution of ferns (monilophytes) with a focus on the early leptosporangiate divergences, in American Journal of Botany, vol. 91, n. 10, 1º settembre 2004, pp. 1582–1598, DOI:10.3732/ajb.91.10.1582. URL consultato il 17 febbraio 2021.
(EN) Kathleen M. Pryer, Harald Schneider e Alan R. Smith, Horsetails and ferns are a monophyletic group and the closest living relatives to seed plants, in Nature, vol. 409, n. 6820, 2001-02, pp. 618–622, DOI:10.1038/35054555. URL consultato il 17 febbraio 2021.

(EN) Smith A.R., Pryer K.M., Schuettpelz E., Korall P., Schneider H. & Wolf P.G, A classification for extant ferns (PDF), in Taxon 2006; 55(3): 705–731.

(EN) Kathleen M. Pryer, Harald Schneider e Alan R. Smith, Horsetails and ferns are a monophyletic group and the closest living relatives to seed plants, in Nature, vol. 409, n. 6820, 2001-02, pp. 618–622, DOI:10.1038/35054555. URL consultato il 17 febbraio 2021.