Lara, Teodoro, Nelson Merentes, Roy Quintero, and Edgar Rosales. “Strong M-Convexity of Set-Valued Functions”. Annales Mathematicae Silesianae 37, no. 1 (February 7, 2023): 82-94. Accessed July 27, 2024. https://www.journals.us.edu.pl/index.php/AMSIL/article/view/15210.