Pis'mo neizvestnogo so spiskom tušinskogo posol'stva k korolju Reči Pospolitoj = A letter from an unknown person with a list of the Tushino embassy to the king of the Polish-Lithuanian Commonwealth - Tjumencev, Igorʹ Olegovič 1958-; Tupikova, Natal'ja Alekseevna (2021)