@misc{Goebel_Kazimierz_(1940-_)_The, author={Goebel, Kazimierz (1940- ) and Sękowski, Tadeusz}, howpublished={online}, publisher={nakł. UMCS}, language={eng}, type={artykuł}, title={The Modulus of Noncompact Convexity}, keywords={matematyka}, }