Arutyunov, Aram V. and Obukhovskii, Valeri. "5. Convex functions". Convex and Set-Valued Analysis: Selected Topics, Berlin, Boston: De Gruyter, 2017, pp. 29-36. https://doi.org/10.1515/9783110460308-006
Arutyunov, A. & Obukhovskii, V. (2017). 5. Convex functions. In Convex and Set-Valued Analysis: Selected Topics (pp. 29-36). Berlin, Boston: De Gruyter. https://doi.org/10.1515/9783110460308-006
Arutyunov, A. and Obukhovskii, V. 2017. 5. Convex functions. Convex and Set-Valued Analysis: Selected Topics. Berlin, Boston: De Gruyter, pp. 29-36. https://doi.org/10.1515/9783110460308-006
Arutyunov, Aram V. and Obukhovskii, Valeri. "5. Convex functions" In Convex and Set-Valued Analysis: Selected Topics, 29-36. Berlin, Boston: De Gruyter, 2017. https://doi.org/10.1515/9783110460308-006
Arutyunov A, Obukhovskii V. 5. Convex functions. In: Convex and Set-Valued Analysis: Selected Topics. Berlin, Boston: De Gruyter; 2017. p.29-36. https://doi.org/10.1515/9783110460308-006