A systematic collection of different charters / was made by Major General K. Boldt. - St. Petersburg: Type. Trenke and Fusno, 1885. - XXVIII, 551 p. ; 16 centimeters
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ББК 68.434ю11 ББК 63.3 (2) 522-35ю11
Copy source: RSL Location on map of originals: RSL