Väli, Ülo (2006): Mitochondrial DNA sequences support species status for the Indian Spotted Eagle Aquila hastata. Bulletin of the British Ornithologists' Club126(3): 238-242. Format PDFArxivat 2007-09-27 a Wayback Machine.
Väli, Ülo (2006): Mitochondrial DNA sequences support species status for the Indian Spotted Eagle Aquila hastata. Bulletin of the British Ornithologists' Club126(3): 238-242. Format PDFArxivat 2007-09-27 a Wayback Machine.