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pubmed.ncbi.nlm.nih.gov
Funk, S.M.; et al. (2007). „The pygmy hog is a unique genus: 19th century taxonomists got it right first time round“. Molecular Phylogenetics and Evolution. 45 (2): 427–436. doi:10.1016/j.ympev.2007.08.007. PMID17905601.
