G. D. Sharma SHARMA, G. D., & METZ, L. J. (1976). BIOLOGY OF COLLEMBOLA XENYLLA-GRISEA AXELSON AND LEPIDOCYRTUS-CYANEUS-F-CINEREUS FOLSOM. ECOLOGICAL ENTOMOLOGY, 1(3), 209–212. https://doi.org/10.1111/j.1365-2311.1976.tb01224.x