Clements, J. F., T. S. Schulenberg, M. J. Iliff, D. Roberson, T. A. Fredericks, B. L. Sullivan, and C. L. Wood (2015) The eBird/Clements checklist of birds of the world: Version 2015 http://www.birds.cornell.edu/clementschecklist/download, läst 2016-02-11
doi.org
Madge, S. (2020). Friendly Bush Warbler (Locustella accentor), version 1.0. In Birds of the World (J. del Hoyo, A. Elliott, J. Sargatal, D. A. Christie, and E. de Juana, Editors). Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi.org/10.2173/bow.frbwar1.01
Alström, P., S. Fregin, J.A. Norman, P.G.P. Ericson, L. Christidis, and and U. Olsson (2011), [https://www.sciencedirect.com/science/article/abs/pii/S1055790310004938 Multilocus analysis of a taxonomically densely sampled dataset reveal extensive non-monophyly in the avian family Locustellidae, Mol. Phylogenet. Evol. 58, 513-526.