Ulam type stability - Brzdęk, Janusz; Popa, Dorian; Rassias, Themistocles M. 1951- (Springer, 2019)
Aus dem Vorwort: "The present book is the outcome of two Conferences on Ulam Type Stability (CUTS) organized in 2016 (July 4-9, Vluj-Napoca, Romania) and in 2018 (October 8-13, Timişoara, Romania)"