MainAuthors Ekaterina V. Belitsina postgraduate student of the Department of Civil Law and Procedure, Business and International Private Law Peoples’ Friendship University of Russia named after Patrice Lumumba , Moscow, Russian Federation ARTICLES: Problem of the Application of Potestative Terms in Contracts for the Performance of Experimental Design Work in the Field of State Defense Order Economic Problems and Legal Practice — Issue №4 2024: 58-65