2 citations to https://www.mathnet.ru/rus/faa3241

1. Jean-François Fortin, Lorenzo Quintavalle, Witold Skiba, “Casimirs of the Virasoro Algebra”, Physics Letters B, 2024, 139080  
2. Dmitry Millionshchikov, Springer Proceedings in Mathematics & Statistics, 273, Recent Developments in Integrable Systems and Related Topics of Mathematical Physics, 2018, 154