\RBibitem{3}
\by bELKACEM CHAOUCHI-Kostić, Marko
\paper On the study of the wave equation set on a singular cylindrical domain
\jour Publ. Inst. Math., Nouv. Sér.
\yr 2022
\vol 112
\issue 126
\pages 13-22
B. Chaouchi, V. E. Fedorov, M. Kostić, “Monotonicity of certain classes of functions related with Cusa — Huygens inequality”, Chelyab. Fiz.-Mat. Zh., 6:3 (2021), 331–337
B. Chaouchi, M. Kostić, S. Pilipović, D. Velinov, “Semi-Bloch periodic functions, semi-anti-periodic functions and applications”, Chelyab. Fiz.-Mat. Zh., 5:2 (2020), 245–255