I'm currently working on a paper about Stalingrad as a city during the battle for Stalingrad. But apart from a few books, which give some general indications that stalingrad was an industrial powerhouse, I'm having trouble finding exact numbers about stalingrad's economic worth so i was wondering wether you guys would have some sources
send an e-mail to your local russian embassy. They will most likely copy any sources they have, provided it is not classified for some ideological reasons.