Dear Gregory, there has been a quite interesting exhibition in Kassel (Germany) and St. Petersburg in 1994, called "Agitation zum Glück - Sowjetische Kunst in der Stalinzeit". A catalogue (ISBN 3-86108-509-7) has been published at the Edition Temmen in Bremen, tel. +421-344280, fax +421-348094. There has been a corresponding conference in Kassel, but I don't know wether they published any articles. Karl-Heinz Ziessow