Vršanský, P., Vidlička, Ľubomír, Barna, P., Bugdaeva, E., & Markevich, V. (2013). Paleocene origin of the cockroach families Blaberidae and Corydiidae: Evidence from Amur River region of Russia. Zootaxa, 3635(2), 117–126. https://doi.org/10.11646/zootaxa.3635.2.2