Taxon - Odkazy a literatura
Gyps fulvus fulvescens Hume, 1869 - sup bělohlavý indický Clements, J. F.: eBird/Clements checklist of birds of the world 6.7, Cornell Lab of Ornithology [jako Gyps fulvus fulvescens]Datum citace: 7. duben 2013
Gyps rueppelli rueppelli (A. E. Brehm, 1852) Gill F., Donsker D. & Rasmussen P. (eds): IOC World Bird List 11.1 [http://www.worldbirdnames.org/] [jako Gyps rueppelli rueppelli (Brehm, AE, 1852)]Datum citace: 22. duben 2021
Clements, J. F.: eBird/Clements checklist of birds of the world 6.7, Cornell Lab of Ornithology [jako Gyps rueppellii rueppellii = Gyps rueppelli rueppelli (A. E. Brehm, 1852)]Datum citace: 17. duben 2013
Gyps rueppelli erlangeri Salvadori, 1908 Gill F., Donsker D. & Rasmussen P. (eds): IOC World Bird List 11.1 [http://www.worldbirdnames.org/] [jako Gyps rueppelli erlangeri Salvadori, 1908]Datum citace: 22. duben 2021
Clements, J. F.: eBird/Clements checklist of birds of the world 6.7, Cornell Lab of Ornithology [jako Gyps rueppellii erlangeri = Gyps rueppelli erlangeri Salvadori, 1908]Datum citace: 7. duben 2013