Wheeler, Ward C.; Whiting, Michael; Wheeler, Quentin D.; Carpenter, James M. (2001-06-01). “The Phylogeny of the Extant Hexapod Orders”. Cladistics17 (2): 113–169. doi:10.1111/j.1096-0031.2001.tb00115.x. ISSN1096-0031.
Hinton, H. E. (1948-11-01). “On the Origin and Function of the Pupal Stage”. Transactions of the Royal Entomological Society of London99 (12): 395–409. doi:10.1111/j.1365-2311.1948.tb01227.x. ISSN1365-2311.
Wheeler, Ward C.; Whiting, Michael; Wheeler, Quentin D.; Carpenter, James M. (2001-06-01). “The Phylogeny of the Extant Hexapod Orders”. Cladistics17 (2): 113–169. doi:10.1111/j.1096-0031.2001.tb00115.x. ISSN1096-0031.
Hinton, H. E. (1948-11-01). “On the Origin and Function of the Pupal Stage”. Transactions of the Royal Entomological Society of London99 (12): 395–409. doi:10.1111/j.1365-2311.1948.tb01227.x. ISSN1365-2311.