González-Soriano, E., and N. Von Ellenrieder. “What Is Amphipteryx Agrioides Selys 1853 (Odonata: Amphipterygidae)?”. Zootaxa, vol. 2074, no. 1, Apr. 2009, pp. 61–64, doi:10.11646/zootaxa.2074.1.3.