A few more Dvinsky diploma XV century

Siberians, Justin Mikhailovich (1853-1933).A few more Dvinsky diploma XV century: with ad.3 zincogr./ THEM.Siberians and A.A.Chess.- St. Petersburg: Deputy Rus.Yaz.and literature imp.Acad.Sciences, 1909. - [2], 23 p., 3 l.Fax.;25. - (research in the Russian language; T. 2, no. 5).I. Shakhmatov, Alexey Alexandrovich (1864-1920).Electronic Source: PB