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Author  |
Title | Year | Publication | Serial | Volume | Pages |
|---|---|---|---|---|---|---|
| Inoue-Nakamura N; Matsuzawa T | Development of stone tool use by wild chimpanzees (Pan troglodytes) | 1997 | J. Comp. Psychol. | 3009 | 111 | 159 |
| Sakura O; Matsuzawa T | Flexibility of wild chimpanzees nut-cracking behavior using stone hammers and anvils: an experimental analysis | 1991 | Ethology | 3038 | 87 | 237 |