F. Ilyinsky.Russian folk songs recorded in Belgorod district.The cover letter dated November 13, 1887 from Kyiv.

F. Ilyinsky.Russian folk songs recorded in Belgorod district.The cover letter dated November 13, 1887 from Kyiv.- -.-Agreement No. 24 of 02/12/2016 category 29 of the manuscript of the works of members of the Russian Geographical Society and separate documents in the Kursk province, case 39..Electronic copy source: PB