Dimitrios C. Kravvaritis, National Tech. Univ. Athens, Greece; Athanasios N. Yannacopoulos, Athens Univ. Econ. Business, Greece.
"""The book is clearly and intelligibly written and it can be recommended to graduate students, lecturers, researchers and all who are interested in theoretical and applied aspects of nonlinear analysis."" Valerii V. Obukhovskij in: zbMATH, 03.11.2020"