Preece, R. C. (2006). „Humans in the Hoxnian: habitat, context and fire use at Beeches Pit, West Stow, Suffolk, UK”. Journal of Quaternary Science. 21 (5): 485—96. doi:10.1002/jqs.1043.
Luke, Kim. „Evidence That Human Ancestors Used Fire One Million Years Ago”. Приступљено 27. 10. 2013. „An international team led by the University of Toronto and Hebrew University has identified the earliest known evidence of the use of fire by human ancestors. Microscopic traces of wood ash, alongside animal bones and stone tools, were found in a layer dated to one million years ago”