Staniszewska L. The institution of substantive cooperation in issuing administrative acts on the example of selected legal orders – Poland and the Federal Republic of Germany. 10.14746/rpeis [Internet]. 2021 Mar. 30 [cited 2024 Jul. 17];83(1):129-41. Available from: https://pressto.amu.edu.pl/index.php/rpeis/article/view/21463