@inbook{Olson1985-bq, author = "T. R. Olson", title = "Cranial morphology and systematics of the Hadar Formation hominids and`` Australopithecus africanus.''", year = 1985, booktitle = "Ancestors: The hard evidence", publisher = "Alan R. Liss", pages = "102-119", url = "https://ci.nii.ac.jp/naid/10016053578/" } @article{Day1980-vy, author = "M. H. Day and M. D. Leakey and T. R. Olson", title = "On the Status of Australopithecus afarensis", year = 1980, journal = "Science", publisher = "JSTOR", volume = 207, number = 4435, pages = "1102-1103", month = "Mar", doi = "10.1126/science.207.4435.1102", url = "https://doi.org/10.1126/science.207.4435.1102" } @article{Olson1978-hw, author = "T. R. Olson", title = "Hominid phylogenetics and the existence of Homo in Member I of the Swartkrans formation, South Africa", year = 1978, journal = "J. Hum. Evol.", publisher = "Elsevier", volume = 7, number = 2, pages = "159-178", month = "Feb", keywords = "fossils, hominidae, homo, paranthropus, phylogenetics, classification, evolution", doi = "10.1016/S0047-2484(78)80008-6", url = "https://doi.org/10.1016/S0047-2484(78)80008-6" }