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| Hashimoto,Hashimoto, Same issue, 1996 | :: | 1 |
| MacLennan, Synthetic Ethology: An approach to the study of communication, 1992 | :: | 56 |
| Nicolis,Prigogine, Exploring Complexity, 1985 | :: | 6 |
| Pinker,Bloom, Natural language and natural selection, 1990 | :: | 168 |
| Prigogine,Stengers, Order Out of Chaos, 1984 | :: | 7 |
| Steels, Self-organizing vocabularies, 1996 | :: | 67 |
| Werner,Dyer, Evolution of Communication in Artificial Organisms, 1992 | :: | 82 |
| Wittgenstein, Philosophical Investigations, 1974 | :: | 29 |