Kovalets, T. 2021. «Lithuania with the Crown has a common cause…»: The siege of Gomel by the Cossacks and the Cossack-Lithuanian negotiations in June 1651 on the basis of little-known documents (publication of sources). History Journal of Yuriy Fedkovych Chernivtsi National University. 53 (Jun. 2021), 151-158. DOI:https://doi.org/10.31861/hj2021.53.151-158.