Actually, there is moderate amount of information available. A 409 page book is at least a start: link
includes unit designations. (The 39th Rifle Corps is controlling the 32nd and 40th Rifle Divisions)
Oops, meant to just give a link to the image so that you could see it full-sized! picture
There's at least a small book in Russian: link
And the Axis History Forum has a fascinating thread full of photos relating to the battle: link
(Remember, Khalkin Gol and Nomonhan are the same battle, just the Mongolian (Soviet) and Japanese names for the region/battle.)
Note: the bug hit as I was editing this. Suddenly, everything I was writing was replace by something about painting Rhohrimm (sp?)