de Bonis, Louis; Koufos, George D. (2004). "Ouranopithecus and dating the splitting of extant hominoids". Comptes Rendus Palevol. 3 (4): 257–264. doi:10.1016/j.crpv.2004.04.002.
Koufos, George D.; de Bonis, Louis (2005). "The late Miocene Hominoids Ouranopithecus and Graeceopithecus. Implications about their relationships and taxonomy". Annales de Paléontologie. 91 (3): 227–240. Bibcode:2005AnPal..91..227K. doi:10.1016/j.annpal.2005.05.001.
Koufos, G. D. (1993). "Mandible of Ouranopithecus macedoniensis (Hominidae, Primates) from a new late miocene locality of Macedonia (Greece)". American Journal of Physical Anthropology. 91 (2): 225–234. doi:10.1002/ajpa.1330910208. PMID8317563.
Ioannidou, Melania; Koufos, George D.; de Bonis, Louis; Harvati, Katerina (2019). "A new three-dimensional geometric morphometrics analysis of the Ouranopithecus macedoniensis cranium (Late Miocene, Central Macedonia, Greece)". American Journal of Physical Anthropology. 170 (2): 295–307. doi:10.1002/ajpa.23900. PMID31339568. S2CID198194561.
Gilbert, Christopher C.; Pugh, Kelsey D.; Fleagle, John G. (2020), Prasad, Guntupalli V.R.; Patnaik, Rajeev (eds.), "Dispersal of Miocene Hominoids (and Pliopithecoids) from Africa to Eurasia in Light of Changing Tectonics and Climate", Biological Consequences of Plate Tectonics: New Perspectives on Post-Gondwana Break-up–A Tribute to Ashok Sahni, Vertebrate Paleobiology and Paleoanthropology, Cham: Springer International Publishing, pp. 393–412, doi:10.1007/978-3-030-49753-8_17, ISBN978-3-030-49753-8, S2CID229622942
Koufos, George D.; de Bonis, Louis (2005). "The late Miocene Hominoids Ouranopithecus and Graeceopithecus. Implications about their relationships and taxonomy". Annales de Paléontologie. 91 (3): 227–240. Bibcode:2005AnPal..91..227K. doi:10.1016/j.annpal.2005.05.001.
Koufos, G. D. (1993). "Mandible of Ouranopithecus macedoniensis (Hominidae, Primates) from a new late miocene locality of Macedonia (Greece)". American Journal of Physical Anthropology. 91 (2): 225–234. doi:10.1002/ajpa.1330910208. PMID8317563.
Ioannidou, Melania; Koufos, George D.; de Bonis, Louis; Harvati, Katerina (2019). "A new three-dimensional geometric morphometrics analysis of the Ouranopithecus macedoniensis cranium (Late Miocene, Central Macedonia, Greece)". American Journal of Physical Anthropology. 170 (2): 295–307. doi:10.1002/ajpa.23900. PMID31339568. S2CID198194561.
Ioannidou, Melania; Koufos, George D.; de Bonis, Louis; Harvati, Katerina (2019). "A new three-dimensional geometric morphometrics analysis of the Ouranopithecus macedoniensis cranium (Late Miocene, Central Macedonia, Greece)". American Journal of Physical Anthropology. 170 (2): 295–307. doi:10.1002/ajpa.23900. PMID31339568. S2CID198194561.
Gilbert, Christopher C.; Pugh, Kelsey D.; Fleagle, John G. (2020), Prasad, Guntupalli V.R.; Patnaik, Rajeev (eds.), "Dispersal of Miocene Hominoids (and Pliopithecoids) from Africa to Eurasia in Light of Changing Tectonics and Climate", Biological Consequences of Plate Tectonics: New Perspectives on Post-Gondwana Break-up–A Tribute to Ashok Sahni, Vertebrate Paleobiology and Paleoanthropology, Cham: Springer International Publishing, pp. 393–412, doi:10.1007/978-3-030-49753-8_17, ISBN978-3-030-49753-8, S2CID229622942