Template:Spassov & Geraads, 2004
- Spassov, N. & Geraads, D. 2004. Tragoportax Pilgrim, 1937 and Miotragocerus Stromer, 1928 (Mammalia, Bovidae) from the Turolian of Hadjidimovo, Bulgaria, and a revision of the late Miocene Mediterranean Boselaphini. Geodiversitas 26(2): 339–370. ResearchGate Online