01184nas 2200373- 450 99635254880331620240112213020.0(OCoLC)1199002032(CKB)2660000000038380(CONSER)--2021221590(EXLCZ)99266000000003838020200820a20079999 --- -rusurunu||||||||txtrdacontentcrdamediacrrdacarrierIzvestii͡a vysshikh uchebnykh zavedeniĭPovolzhskiĭ regionObshchestvennye naukiPenza :Penzenskiĭ gosudarstvennyĭ universitet,[2007]-1 online resourceRefereed/Peer-reviewed2072-3016 Povolzhskiĭ region.Obshchestvennye naukiSocial sciencesPeriodicalsSocial sciencesfast(OCoLC)fst01122877Periodicals.fastSocial sciencesSocial sciences.Penzenskiĭ gosudarstvennyĭ universitet,JOURNAL996352548803316Izvestii͡a vysshikh uchebnykh zavedeniĭ2078453UNISA