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Fernández, M. H.; Vrba, E. S. (). „A complete estimate of the phylogenetic relationships in Ruminantia: a dated species-level supertree of the extant ruminants”. Biological Reviews. 80 (2): 269–302. doi:10.1017/S1464793104006670. PMID15921052.
Demiguel, D.; Sánchez, I. M.; Alba, D. M.; Galindo, J.; Robles, J. M.; Moyà-Solà, S. (). „First evidence of Azanza and Morales, 1994 (Ruminantia, Bovidae), in the Miocene of the Vallès-Penedès Basin (Spain)”. Journal of Vertebrate Paleontology. 32 (6): 1457–62. doi:10.1080/02724634.2012.696082.
Gatesy, J.; Amato, G.; Vrba, E.; Schaller, G. (). „A cladistic analysis of mitochondrial ribosomal DNA from the Bovidae”. Molecular Phylogenetics and Evolution. 7 (3): 303–19. doi:10.1006/mpev.1997.0402. PMID9187090.
Fernández, M. H.; Vrba, E. S. (). „A complete estimate of the phylogenetic relationships in Ruminantia: a dated species-level supertree of the extant ruminants”. Biological Reviews. 80 (2): 269–302. doi:10.1017/S1464793104006670. PMID15921052.