Janssen, Thomas; Bremer, Kåre (2004). „The age of major monocot groups inferred from 800+RBCL sequences”. Botanical Journal of the Linnean Society. 146 (4): 385—398. doi:10.1111/j.1095-8339.2004.00345.x.
„An update of the Angiosperm Phylogeny Group classification for the orders and families of flowering plants: APG II”. Botanical Journal of the Linnean Society. 141 (4): 399—436. 2003. doi:10.1046/j.1095-8339.2003.t01-1-00158.x.
