C. T. Szyjko, “Polska wierci! Relacja z K&L Gates’ First Annual Poland Oil & Gas Seminar”, Doctrina, vol. 9, no. 9, p. 427, Dec. 2019, Accessed: Nov. 21, 2024. [Online]. Available: https://czasopisma.uws.edu.pl/doctrina/article/view/1377