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↑ Alan R. Smith, Kathleen M. Pryer, Eric Schuettpelz, Petra Korall, Harald Schneider & Paul G. Wolf (2006). “A classification for extant ferns” (PDF). Taxon 55 (3): 705–731. doi:10.2307/25065646.
1 2 3 Samuli Lehtonen (2011). “Towards Resolving the Complete Fern Tree of Life” (PDF). PLoS ONE 6 (10): e24851. PMC 3192703. PMID 22022365. doi:10.1371/journal.pone.0024851.
↑ Maarten J. M. Christenhusz, Xian-Chun Zhang & Harald Schneider (2011). “A linear sequence of extant families and genera of lycophytes and ferns” (PDF). Phytotaxa 19: 7–54.
1 2 Maarten J. M. Christenhusz & Harald Schneider (2011). “Corrections to Phytotaxa 19: Linear sequence of lycophytes and ferns” (PDF). Phytotaxa 28: 50–52.
↑ Carl J. Rothfels, Anders Larsson, Li-Yaung Kuo, Petra Korall, Wen- Liang Chiou, Kathleen M. Pryer (2012). “Overcoming Deep Roots, Fast Rates, and Short Internodes to Resolve the Ancient Rapid Radiation of Eupolypod II Ferns”. Systematic Biology 61 (1): 70.

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