Cibois, Alice; Pasquet, Eric; Schulenberg, Thomas S. (1999). "Molecular systematics of the Malagasy babblers (Passeriformes: Timaliidae) and warblers (Passeriformes: Sylviidae), based on cytochrome b and 16S rRNA sequences". Molecular Phylogenetics and Evolution. 13 (3). ss. 581-595. doi:10.1006/mpev.1999.0684. PMID10620415.
Beresford, P.; Barker, F.K.; Ryan, P.G.; Crowe, T.M. (2005). "African endemics span the tree of songbirds (Passeri): molecular systematics of several evolutionary 'enigmas'". Proceedings of the Royal Society B. 272 (1565). ss. 849-858. doi:10.1098/rspb.2004.2997. PMC1599865 $2. PMID15888418.
Cibois, Alice; Pasquet, Eric; Schulenberg, Thomas S. (1999). "Molecular systematics of the Malagasy babblers (Passeriformes: Timaliidae) and warblers (Passeriformes: Sylviidae), based on cytochrome b and 16S rRNA sequences". Molecular Phylogenetics and Evolution. 13 (3). ss. 581-595. doi:10.1006/mpev.1999.0684. PMID10620415.
Beresford, P.; Barker, F.K.; Ryan, P.G.; Crowe, T.M. (2005). "African endemics span the tree of songbirds (Passeri): molecular systematics of several evolutionary 'enigmas'". Proceedings of the Royal Society B. 272 (1565). ss. 849-858. doi:10.1098/rspb.2004.2997. PMC1599865 $2. PMID15888418.