PETRUȘEL, A. (2020). Book reviews: “John R. Graef, Johnny Henderson, Abdelghani Ouahab; Topological Methods for Differential Equations and Inclusions”, CRC Press, Taylor & Francis Group, Boca Raton, FL, USA, 2019, xiv + 360 pp., ISBN 9781138332294 - CAT# K393112. Studia Universitatis Babeș-Bolyai Mathematica, 65(1), 161–162. Retrieved from https://studia.reviste.ubbcluj.ro/index.php/subbmathematica/article/view/2436