The relationship between perception and production in songbird vocal imitation: what learned calls can teach us.
J Comp Physiol A Neuroethol Sens Neural Behav Physiol. 2002 Dec;188(11-12):897-908. doi: 10.1007/s00359-002-0354-2. Epub 2002 Nov 15.
J Comp Physiol A Neuroethol Sens Neural Behav Physiol. 2002.
PMID: 12471489