Mieczkowski, K. 2023. The concept of commercial impracticability in regard to the performance of contractual obligations. Acta Iuridica Resoviensia (formelry: The Scientific Journal of the University of Rzeszow, Law Series). 42, 124 (Sep. 2023), 34–54. DOI:https://doi.org/10.15584/actaires.2023.3.3.