スー・サベージ＝ランボー
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Lyn, H., Franks, B., and Savage-Rumbaugh, E. S. (2008) Precursors of morality in the use of the symbols "good" and "bad" in two bonobos (Pan paniscus) and a chimpanzee (Pan troglodytes). Language and Communication 28(3) 213-224 doi:10.1016/j.langcom.2008.01.006.
Greenfield, P. M., Lyn, H., & Savage-Rumbaugh, E. S. (2008). Protolanguage in ontogeny and phylogeny: combining deixis and representation. Interaction Studies, 9(1), 34-50.
Rumbaugh, D. M., Washburn, D. A., King, J. E., Beran, M. J. Gould, K., & Savage-Rumbaugh, E. S. (2008).