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Kocyan, Alexander; Snijman, Deirdre A.; Forest, Félix; Devey, Dion S.; Freudenstein, John V.; Wiland-Szymańska, Justyna; Chase, Mark W.; Rudall, Paula J. (2011-07-01). "Molecular phylogenetics of Hypoxidaceae – Evidence from plastid DNA data and inferences on morphology and biogeography". Molecular Phylogenetics and Evolution. 60 (1): 122–136. Bibcode:2011MolPE..60..122K. doi:10.1016/j.ympev.2011.02.021. PMID21459153.
Kocyan, Alexander; Snijman, Deirdre A.; Forest, Félix; Devey, Dion S.; Freudenstein, John V.; Wiland-Szymańska, Justyna; Chase, Mark W.; Rudall, Paula J. (2011-07-01). "Molecular phylogenetics of Hypoxidaceae – Evidence from plastid DNA data and inferences on morphology and biogeography". Molecular Phylogenetics and Evolution. 60 (1): 122–136. Bibcode:2011MolPE..60..122K. doi:10.1016/j.ympev.2011.02.021. PMID21459153.
Nordal, Inger; Laane, Morten M.; Holt, Ellen; Staubo, Inger (1985-02-01). "Taxonomic studies of the genus Hypoxis in East Africa". Nordic Journal of Botany. 5 (1): 15–30. doi:10.1111/j.1756-1051.1985.tb02067.x. ISSN1756-1051.