Template:Friedrich, Farrell & Beutel, 2009
- Friedrich, F., Farrell, B.D. & Beutel, R.G. 2008 (Online) 2009 (Print). The thoracic morphology of Archostemata and the relationships of the extant suborders of Coleoptera (Hexapoda). Cladistics 25(1): 1–37. DOI: 10.1111/j.1096-0031.2008.00233.x
. [Erratum: 2009. 25(2): 209. DOI: 10.1111/j.1096-0031.2009.00257.x .]
