Khasanov, A.B. et al. 2024. Integration of a nonlinear sine-Gordon–Liouville-type equation in the class of periodic infinite-gap functions. Ukrains’kyi Matematychnyi Zhurnal. 76, 8 (Sep. 2024), 1217–1234. DOI:https://doi.org/10.3842/umzh.v76i8.7610.