Active zone ultrastructure

[Udo Merkel]

Does someone know of a good state-of-the-art account of the 
ultrastructure of active zones in nerve terminals (cortical 
or neuromuscular junction ones)? The references I had found 
(Akert, Peper & Sandri 1975; Triller & Korn 1982) don't look 
particularly recent.. Thanx

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Udo Merkel                                  merkel at informatik.uni-stuttgart.de
Institut fuer Informatik, Universitaet Stuttgart       Tel: (+49 711) 7816-366
Breitwiesenstrasse 20-22, D-70565 Stuttgart, Germany   Fax: (+49 711) 780-1044