Barylska, M., and M. Deka. “Possibility of Using Rebus Sic Stantibus Clause for the Protection of Parties of Contractual Relations Affected by the Effects of SARS-COV-2”. Acta Universitatis Lodziensis. Folia Iuridica, vol. 97, Dec. 2021, pp. 143-56, doi:10.18778/0208-6069.97.08.