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Marks, Ben D.; Weckstein, Jason D.; Moyle, Robert G. (octombrie 2007). „Molecular phylogenetics of the Bee-eaters (Aves: Meropidae) based on nuclear and mitochondrial DNA sequence data”. Molecular Phylogenetics and Evolution (în engleză). 45 (1): 23–32. Bibcode:2007MolPE..45...23M. doi:10.1016/j.ympev.2007.07.004. PMID17716922.
Marks, Ben D.; Weckstein, Jason D.; Moyle, Robert G. (octombrie 2007). „Molecular phylogenetics of the Bee-eaters (Aves: Meropidae) based on nuclear and mitochondrial DNA sequence data”. Molecular Phylogenetics and Evolution (în engleză). 45 (1): 23–32. Bibcode:2007MolPE..45...23M. doi:10.1016/j.ympev.2007.07.004. PMID17716922.