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 2021-03-26](ang.).
GustavG.KvistGustavG., Identity of the material of the Ranunculus auricomus group in the Linnaean Herbarium, „Annales Botanici Fennici”, 24 (1), 1987, s. 73–77, ISSN0003-3847, JSTOR: 23725592.
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 2021-03-26](ang.).
GustavG.KvistGustavG., Identity of the material of the Ranunculus auricomus group in the Linnaean Herbarium, „Annales Botanici Fennici”, 24 (1), 1987, s. 73–77, ISSN0003-3847, JSTOR: 23725592.