Oberlander, K. C.; Emshwiller, E.; Bellstedt, D.U. & Dreyer, L.L. (2009). "A model of bulb evolution in the eudicot genus Oxalis (Oxalidaceae)". Molecular Phylogenetics & Evolution. 51 (1): 54–63. Bibcode:2009MolPE..51...54O. doi:10.1016/j.ympev.2008.11.022. PMID19070669.
Oberlander, K. C.; Emshwiller, E.; Bellstedt, D.U. & Dreyer, L.L. (2009). "A model of bulb evolution in the eudicot genus Oxalis (Oxalidaceae)". Molecular Phylogenetics & Evolution. 51 (1): 54–63. Bibcode:2009MolPE..51...54O. doi:10.1016/j.ympev.2008.11.022. PMID19070669.
Oberlander, K. C.; Emshwiller, E.; Bellstedt, D.U. & Dreyer, L.L. (2009). "A model of bulb evolution in the eudicot genus Oxalis (Oxalidaceae)". Molecular Phylogenetics & Evolution. 51 (1): 54–63. Bibcode:2009MolPE..51...54O. doi:10.1016/j.ympev.2008.11.022. PMID19070669.