For citations:

Popov P.V. Trade and commercial occupations and duties of South Russian cannoneers in the 17th century (based on the Belgorod trait region fortresses materials). Tambov University Review. Series: Humanities. 2023;28(3):665-672. (In Russ.) https://doi.org/10.20310/1810-0201-2023-28-3-665-672