@INBOOK { oudeyer:06b, author = {Pierre-Yves Oudeyer},booktitle = {Emergence of Communication and Language},editor = {C. Lyon and C. Nehaniv and A. Cangelosi},note = {Language},publisher = {Springer Verlag},title = {From vocal replication to shared combinatorial speech codes: a small step for evolution, a big step for language},type = {INBOOK},year = {2006},}