References
Bernard Bichakjian
(1992). Language evolution: evidence from historical linguistics. In J. Wind, B. Chiarelli, B. Bichakjian, A. Nocentini & A. Jonker (eds.) Language origin (pp. 497-516). Dordrecht: Springer.
with Wind Jan, Chiarelli Brunetto, Nocentini Alberto, Jonker Abraham (eds) (1992). Language origin: a multidisciplinary approach. Dordrecht: Springer.