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efloras.org
«Viburnum». Flora of China. Henta 30. desember 2014.
S.B. Schmerler m.fl. (2012). «Evolution of leaf form correlates with tropical–temperate transitions in Viburnum (Adoxaceae)». Proceedings of the Royal Society B279 (1744): 3905–3913. ISSN1471-2954. doi:10.1098/rspb.2012.1110.