PETRUȘEL, Adrian. “Book Reviews: Aram V. Arutyunov and Valeri Obukhovskii; Convex and Set-Valued Analysis. Selected Topics, De Gruyter Graduate, De Gruyter, Berlin 2017, viii+201 p., ISBN: 978-3-11- 046028-5 Pbk; 978-3-11-046030-8 Ebook”. Studia Universitatis Babeș-Bolyai Mathematica, vol. 62, no. 1, Oct. 2022, p. 137, https://studia.reviste.ubbcluj.ro/index.php/subbmathematica/article/view/1706.