Kaplunov, J., & Prikazchikov, D. A. (in press). On The Derivation Of A String Equation. Natsional'naya Akademiya Nauk Armenii. Izvestiya. Seriya Mekhanika / Proceedings of NAS RA: Mechanics, 75(1), 163-168. https://doi.org/10.54503/0002-3051-2022.75.1-2-163