Hentosh, O.E. et al. 2022. Geometric structures on the orbits of loop diffeomorphism groups and related “heavenly-type” hamiltonian systems. II. Ukrains’kyi Matematychnyi Zhurnal. 74, 9 (Nov. 2022), 1182–1200. DOI:https://doi.org/10.37863/umzh.v74i9.7234.