| Ferrer,Sole, To be submited to Europhysics Letters, 2000 | :: | 1 |
| Hall, Haitian Creole: Grammar, 1953 | :: | 1 |
| Li,Li, Zipf's Law and the structure and evolution of languages, 1998 | :: | 2 |
| Li, Zipf's law, xxxx | :: | 1 |
| Nowak,Plotkin,Jansen, The evolution of syntactic communication, 2000 | :: | 81 |
| Romaine, Pidgin and Creole Languages, 1988 | :: | 4 |
| Tsonis,Schultz,Tsonis, Zipf's Law and the structure and evolution of languages, 1997 | :: | 3 |
| Zipf, Human behaviour and the principle of least effort: An introduction to human ecology, 1949 | :: | 10 |