1907- clergyrusskai͡apravoslavnai͡at͡serkovʹ correspondence energyindustries ethnology familytrubet͡skoĭ finno-ugrians folklore khanty mathematicalmodels nikolaĭ performance physicalanthropology politicalprisoners ritesandceremonies russia(federation) russiaanthropologyfolklorecustomsethnologyethnicminorities sovietunion territorialproductioncomplexes trubet͡skoĭ udmurts