(EN) Mark P. Witton e Michael B. Habib, On the Size and Flight Diversity of Giant Pterosaurs, the Use of Birds as Pterosaur Analogues and Comments on Pterosaur Flightlessness, in PLoS One, Vincent Laudet, 15 novembre 2010, PMID 21085624.
«The most recent giant pterosaur to be described and named, Hatzegopteryx, was proposed to have a wingspan between 10–12 m»
