Difference Equations, Discrete Dynamical Systems and Applications ICDEA 23, Timişoara, Romania, July 24-28, 2017 - Elaydi, Saber; Elaydi, Saber; Pötzsche, Christian; Pötzsche, Christian; Sasu, Adina Luminiţa; Sasu, Adina Luminiţa (Springer International Publishing : Imprint: Springer, 2019)