Hildebrand EA, Grillo KM, Sawchuk EA, Pfeiffer SK, Conyers LB, Goldstein ST, Hill AC, Janzen A, Klehm CE, Helper M, Kiura P, Ndiema E, Ngugi C, Shea JJ, Wang H. A monumental cemetery built by eastern Africa's first herders near Lake Turkana, Kenya. Proc Natl Acad Sci U S A. 2018 09 04; 115(36):8942-8947.