Kledzik , P. “The Issue of the Category of Parties in Administrative Proceedings in the Context of the Condition of Consent of the Party to Have the Final Decision Repealed or Amended Pursuant to Article 155 of the Code of Administrative Procedure”. The Opole Studies in Administration and Law, vol. 16, no. 1 (1), May 2019, pp. 87-98, doi:10.25167/osap.208.