As something by way of extra information...
While I was looking for details on Soviet Motor Rifle Divisions, I came across this extract from our old pal Viktor Suvorov.
http://militera.lib.ru/research/suvorov12/03.html
The link has the organization of a Soviet Division but more importantly, it gives an explanation for the distribution of Soviet units in Poland, East Germany and Czechoslovakia.
The most interesting point to note however, is that this page is from a Russian language military literature website. If you're prepared to wade through machine translations, the site may be worth mining.
Main page -
http://militera.lib.ru/research/index.html