Aras-Gazic, Gorana, Josip Pecaric, and Ana Vukelic. “Generalization of Jensen’s and Jensen-Steffensen’s Inequalities and Their Converses by Lidstone’s Polynomial and Majorization Theorem”. J. Numer. Anal. Approx. Theory 46, no. 1 (September 21, 2017): 6–24. Accessed May 5, 2024. https://ictp.acad.ro/jnaat/journal/article/view/1111.