Potapov, M., Gulgenova, A., & Babykina, M. (2016). Isotomidae (Collembola) of Buryat Republic. III. The genera Vertagopus and Agrenia, with a note on ’Claw index’. Zootaxa, 4088(1), 112–128. https://doi.org/10.11646/zootaxa.4088.1.5