1.
RĄCZKA, Piotr and CHLUDZIŃSKI, Bartłomiej. Control and supervision on the part of the Marshal of the Voivodship over tour operators and tourist entrepreneurs. Studia Iuridica Toruniensia. Online. 18 July 2021. Vol. 27, pp. 289-308. [Accessed 21 July 2024]. DOI 10.12775/SIT.2020.032.