Han, K.-L.; Robbins, M.B.; Braun, M.J. (2010). A multi-gene estimate of phylogeny in the nightjars and nighthawks (Caprimulgidae). Molecular Phylogenetics and Evolution. 55 (2): 443—453. doi:10.1016/j.ympev.2010.01.023. PMID20123032.
Han, K.-L.; Robbins, M.B.; Braun, M.J. (2010). A multi-gene estimate of phylogeny in the nightjars and nighthawks (Caprimulgidae). Molecular Phylogenetics and Evolution. 55 (2): 443—453. doi:10.1016/j.ympev.2010.01.023. PMID20123032.