Title: Sokrovishchnitsa dokumentov proshlogo
Subjects: T︠S︡entralʹnyi gosudarstvennyĭ arkhiv drevnikh aktov (Soviet Union), T︠S︡entralʹnyĭ gosudarstvennyĭ arkhiv drevnikh aktov (Russia), Union of Soviet Socialist RepublicsTsentral'nyi gosudarstvennyi arkhiv drevnikh aktov, History, Sources, Archival resources