Home | << 1 >> |
Author | Title | Year | Publication | Serial | Volume | Pages |
---|---|---|---|---|---|---|
Biro, D.; Matsuzawa, T. | Use of numerical symbols by the chimpanzee (Pan troglodytes): Cardinals, ordinals, and the introduction of zero | 2001 | Animal Cognition | 3251 | 4 | 193-199 |