↑Norman, D.B. (2014). Iguanodonts from the Wealden of England: Do They Contribute to the Discussion Concerning Hadrosaur Origins?. У Eberth, D.A.; Evans, D.C. (ред.). Hadrosaurs. Indiana University Press. с. 10—43. ISBN978-0-253-01385-9.
↑Norman, D. B. “On the history, osteology, and systematic position of the Wealden (Hastings group) dinosaur Hypselospinus fittoni (Iguanodontia: Styracosterna)”. Zoological Journal of the Linnean Society 173(1):92–189 https://doi.org/10.1111/zoj.12193