Maciej Perkowski , Professor (2017), University of Bialystok, Head of the Department of Public International Law and European Law, has published on international environmental law, food safety, international cooperation of local self-government, influence of basic research on university didactics and legal regulation on autism. Wojciech Zoń , M.A. (2018), Ph.D. candidate, University of Bialystok, assistant at the Department of Public International Law and European Law, has research and teaching experience in international and EU law, specifically cross-border cooperation, environmental law and food law. Przemysław Saganek , Dr. habil. (2011), Professor at the Institute of Law Studies of the Polish Academy of Sciences. His research interests and topics of publications are: public international law, EU law, specifically sources and nature of international law, the state responsibility and international tax law.