To the question of when and why the "couple" arose? : (Essay from the history of Moscow's orders) / E.D. Stashevsky. - Kiev: type. Imp. un-ta St. Vladimir AO Print. and ed. N.T. Korchak-Novitsky, 1908. - [2], 40 p. ; 25. - Bibliography. in the note .. - Ott. from "Univ. Izv." for the year 1908
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