Stern, J. T. & Susman, R. L. Am. J. phys. Anthrop.60, 279–317 (1983). Article Google Scholar
Rose, M. D. in Origine(s) de la Bipédie Chez les Hominidés (eds Coppens, Y. & Senut, B.) 37–48 (Editions du CNRS, Paris, 1991). Google Scholar
Susman, R. L. & Stern, J. T. in Origine(s) de la Bipédie chez les Hominidés (eds Coppens, Y. & Senut, B.) 121–131 (Editions du CNRS, Paris, 1991). Google Scholar
Walter, R. C., Manega, P. C., Hay, R. L., Drake, R. E. & Curtis, G. H. Nature354, 145–149 (1991). ArticleADSCAS Google Scholar
Gortani, M. & Biachi, A. Missione Geologica Dell'azienda Generale Italiana Petroli (AGIP) Neila Dancalia Meridionale e Sugli Altipiani Hararini (1936–1938) (Accademia Nazionale dei Lincei, Rome. 1973). Google Scholar
Taieb, M. thesis, Univ. Paris (1974).
Kalb, J. E., Oswald, E. B., Mebrate, A., Tebedge, S. & Jolly, C. J. Newsl. Stratigr.11, 95–127 (1982). Article Google Scholar
Walter, R. C., WoldeGabriel, G. & Westgate, J. Geol. Soc. Am. Abstr. Progm.17, 743 (1985). Google Scholar
Brown, F. H., Sarna-Wojcicki, A. M., Meyer, C. E. & Haileab, B. Quat. int.13/14, 55–67 (1992). Article Google Scholar
Hart, W. K., Walter, R. C. & WoldeGabriel, G. Quat. Int.13/14, 77–86 (1992). Article Google Scholar
WoldeGabriel, G. & Aronson, J. L. Geology15, 432–433 (1987). ADS Google Scholar
WoldeGabriel, G., Walter, R. C., Aronson, J. L. & Hart, W. K. Quat. Int.13/14, 69–76 (1992). Article Google Scholar