Title: Geologo-ėkonomicheskie perspektivy rasshirenii︠a︡ mineralʹno-syrʹevoĭ bazy Povolzhskogo i I︠U︡zhnogo regionov Rossiĭskoĭ Federat︠s︡ii i puti ikh realizat︠s︡ii v 2003-2010 gg