{"id":"drake2011ancient","DOI":"10.1073/pnas.1012231108","URL":"https://doi.org/10.1073/pnas.1012231108","page":"458-462","type":"article-journal","issue":"2","title":"Ancient watercourses and biogeography of the Sahara explain the peopling of the desert","author":[{"given":"Nick A.","family":"Drake"},{"given":"Roger M.","family":"Blench"},{"given":"Simon J.","family":"Armitage"},{"given":"Charlie S.","family":"Bristow"},{"given":"Kevin H.","family":"White"}],"issued":{"date-parts":[[2011]]},"volume":"108","container-title":"Proceedings of the National Academy of Sciences","catalog-key":"SRC0DCP24KVQK90"}