1. a letter to T. Imai;Amemiya,1982
2. a letter to T. Imai;Amemiya,1982
3. Nombres de Stirling généraux et fonctions symétrique;Comtet;C.R. Acad. Sci. Paris Sér. A,1972
4. An inversion model for q-identities;Goulden;European J. Combin.,1983
5. Roots of Fibonacci polynomials;Hogatt;Fibonacci Quart.,1973