Paton TA, Baker AJ, Groth JG, Barrowclough GF (2003). "RAG-1 sequences resolve phylogenetic relationships within charadriiform birds". Molecular Phylogenetics and Evolution 29 (2): 268–78. doi:10.1016/S1055-7903(03)00098-8. PMID13678682.
Fain, Matthew G. & Houde, Peter (2004). PDF fulltext "Parallel radiations in the primary clades of birds". Evolution 58: 2558–73. doi:10.1554/04-235. PMID15612298.
Paton TA, Baker AJ (2006). "Sequences from 14 mitochondrial genes provide a well-supported phylogeny of the Charadriiform birds congruent with the nuclear RAG-1 tree". Molecular Phylogenetics and Evolution 39 (3): 657–67. doi:10.1016/j.ympev.2006.01.011. PMID16531074.