Bashkir language
Dmitriev sent two decades' worth of materials he had collected on the Azeri language to be published as a large scientific grammar, but during the Siege of Leningrad it was lost, together with the first edition of the "Bashkir language grammar". Dmitriev devoted to the Bashkir language a major part of his research, and the best of them, "Bashkir language grammar", together with his other fundamental works became desktop book of the Turkologists. For comparative purposes Dmitriev also involved other language families, Indo-European (Western European languages, Latin, certainly Russian), Uralic (Hungarian and others) allowing wide linguistic interpretation.