On the celebration of the 200th anniversary of the birth of P.P. Semenov-Tyan-Shansky: Decree of the President of the Russian Fe...

On the celebration of the 200th anniversary of the birth of P.P. Semenov-Tyan-Shansky: Decree of the President of the Russian Federation dated November 25, 2022 No. 855 / President of the Russian Federation.- Moscow, 2022. -.Source of electronic copy: Official Internet portal of legal information