[KraMax]

Hi PlasmaKrab.

Links on the Internet it is a lot of. I shall specify to you only link in Russian. This link to a site of 345-th Guards paratroops regiment. On the right on a site in the menu - there is an a point of the menu - the Arms of a regiment refers to. Further we choose ZU-23 - it is inside written, that on arms there were these air-defence complexes, then ZU-23M.

link site:
http://www.vdv345polk.ru/section.pl?id=2

link article aa:
http://www.vdv345polk.ru/article.pl?id=50

English link:
http://www.enemyforces.com/artillery/zu23.htm
http://en.wikipedia.org/wiki/ZU-23