| Bergstrom,Antia,Számadó,Lachmann, The Peacock, the Sparrow, and the Evolution of Human Language, 2001 | :: | |
| Lachmann,Szamado,Bergstrom, Cost and conflict in animal signals and human language, 2001 | :: | 8 |
| Niyogi, The Computational Nature of Language Learning and Evolution, 2006 | :: | 18 |