@inproceedings{Sawada2006-uj, author = "Y. Sawada and M. Saneyoshi and K. Nakayama and T. Sakai and T. Itaya and M. Hyodo and Y. Mukokya and M. Pickford and B. Senut and S. Tanaka and T. Chujo and H. Ishida", title = "The Ages and Geological Backgrounds of Miocene Hominoids Nacholapithecus, Samburupithecus, and Orrorin from Kenya", year = 2006, booktitle = "Human Origins and Environmental Backgrounds", publisher = "Springer US", pages = "71-96" }