VERKHOTUROVA, M. ., and Y. . MARCHENKO. “A SHORT-BARRELLED WROUGHT IRON FIREARM OF THE END OF THE XIVTH – BEGINNING OF THE XVTH CENTURIES IN THE COLLECTION OF LVIV HISTORICAL MUSEUM”. EAST EUROPEAN HISTORICAL BULLETIN, no. 19, June 2021, pp. 30-41, doi:10.24919/2519-058X.19.233814.