Fernández-Jalvo, Y.; Díez, J. C.; Cáceres, I. and Rosell, J. Rujan 1999. Human cannibalism in the Early Pleistocene of Europe (Gran Dolina, Sierra de Atapuerca, Burgos, Spain). Journal of Human Evolution. Academic Press. svezak 37 (broj 34): str. 591. – 622. doi:10.1006/jhev.1999.0324. PMID10497001CS1 održavanje: više imena: authors list (link)
Fernández-Jalvo, Y.; Díez, J. C.; Cáceres, I. and Rosell, J. Rujan 1999. Human cannibalism in the Early Pleistocene of Europe (Gran Dolina, Sierra de Atapuerca, Burgos, Spain). Journal of Human Evolution. Academic Press. svezak 37 (broj 34): str. 591. – 622. doi:10.1006/jhev.1999.0324. PMID10497001CS1 održavanje: više imena: authors list (link)
Nick Ashton, Simon G. Lewis, Isabelle De Groote, Sarah M. Duffy, Martin Bates, Richard Bates, Peter Hoare, Mark Lewis, Simon A. Parfitt, Sylvia Peglar, Craig Williams, Chris Stringer, Hominin Footprints from Early Pleistocene Deposits at Happisburgh, UK, PLOS One, 7. veljače 2014., DOI: 10.1371/journal.pone.0088329