Balkan theatre artillery

There is a great forum that deals with Bulgarian WWI stuff, but its really more of a Balkan WWI forum, so you can ask away!

http://forum.boinaslava.net/showthread.php?t=6610

As for turkish information there is good website starting up:

http://www.turkeyswar.com/

And for Romanian stuff go here:

http://www.worldwar2.ro/forum/index.php?s=0fc36c574febc7ebbda7a0fbf73c 9407&showforum=11 (It's a forum, on ww2 but with a ww1 sub section.)