Hiroshi Tobe i Hiroshi Takahashi. Embryology of Petrosavia (Petrosaviaceae, Petrosaviales): evidence for the distinctness of the family from other monocots. „Journal of Plant Research”. 122 (6). s. 597-610. DOI: 10.1007/s10265-009-0259-z. (ang.).
Hiroshi Takahashi, Eiji Nishio i Hirotaka Hayashi. Pollination biology of the saprophytic speciesPetrosavia sakuraii (Makino) van Steenis in Central Japan. „Journal of Plant Research”. 106 (3), s. 213-217, 1993. DOI: 10.1007/BF02344587.
dx.doi.org
Michael A.M.A.RuggieroMichael A.M.A. i inni, A Higher Level Classification of All Living Organisms, „PLOS One”, 10 (4), 2015, art. nr e0119248, DOI: 10.1371/journal.pone.0119248, PMID: 25923521, PMCID: PMC4418965 [dostęp 2021-03-01](ang.).
Michael A.M.A.RuggieroMichael A.M.A. i inni, A Higher Level Classification of All Living Organisms, „PLOS One”, 10 (4), 2015, art. nr e0119248, DOI: 10.1371/journal.pone.0119248, PMID: 25923521, PMCID: PMC4418965 [dostęp 2021-03-01](ang.).