I have been trying to look for any paper that contains this information -can an axon terminal has two or more different populations of visicles, each with its unique neurotransmitter?

 

If anyone has any idea, please let me know.

Here;

http://www3.interscience.wiley.com/cg.bin

http://www.sciencedirect.com/

http://wok.mimas.ac.uk/

 

you either need to pay or sign in via a uni server though.