Meyburg, B. U. (1994): [210 & 211: Imperial Eagles]. In: del Hoyo, Josep; Elliott, Andrew & Sargatal, Jordi (editors): Handbook of Birds of the World, Volume 2: New World Vultures to Guineafowl: 194-195, plate 20. Lynx Edicions, Barcelona. ISBN 84-87334-15-6
Sangster, George; Knox, Alan G.; Helbig, Andreas J. & Parkin, David T. Taxonomic recommendations for European birds. Ibis(英语:Ibis (journal)). 2002-02-27, 144 (1): 153–159. doi:10.1046/j.0019-1019.2001.00026.x(英语). 使用|accessdate=需要含有|url= (帮助)
Padilla, J. A.; Martinez-Trancón, M.; Rabasco, A. & Fernández-García, J. L. (1999): The karyotype of the Iberian imperial eagle (Aquila adalberti) analyzed by classical and DNA replication banding. Cytogenetics and Cell Genetics84: 61–66. doi:10.1159/000015216 (HTML abstract)
Seibold, I.; Helbig, A. J.; Meyburg, B. U.; Negro, J. J. & Wink, M. (1996): Genetic differentiation and molecular phylogeny of European Aquila eagles (Aves: Falconiformes) according to cytochrome-b nucleotide sequences. In: Meyburg, B. U. & Chancellor, R. D. (eds): Eagle Studies: 1–15. Berlin: World Working Group on Birds of Prey.