Angiosperm Phylogeny Group (2009), An update of the Angiosperm Phylogeny Group classification for the orders and families of flowering plants: APG III, Botanical Journal of the Linnean Society, 161 (2): 105—121, doi:10.1111/j.1095-8339.2009.00996.x
Litt, Amy; Chase, Mark W. (1998). The Systematic Position of Euphronia, with Comments on the Position of Balanops: An Analysis Based on rbcL Sequence Data. Systematic Botany. 23 (4): 401. doi:10.2307/2419372. ISSN0363-6445. JSTOR2419372.
jstor.org
Litt, Amy; Chase, Mark W. (1998). The Systematic Position of Euphronia, with Comments on the Position of Balanops: An Analysis Based on rbcL Sequence Data. Systematic Botany. 23 (4): 401. doi:10.2307/2419372. ISSN0363-6445. JSTOR2419372.
worldcat.org
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Litt, Amy; Chase, Mark W. (1998). The Systematic Position of Euphronia, with Comments on the Position of Balanops: An Analysis Based on rbcL Sequence Data. Systematic Botany. 23 (4): 401. doi:10.2307/2419372. ISSN0363-6445. JSTOR2419372.