@article{Kostyakov2023spaces,
author={Kostyakov, I.V. and Kuratov, V.V.},
title={Spaces of constant curvatere, the Liouville equation and contractions of Lie algebras},
journal={Proceedings of the Komi Science Centre of the Ural Division of the Russian Academy of Sciences},
publisher={FSBI FIC "Komi Scientific Center of the Ural Branch of the Russian Academy of Sciences"},
year={2023},
pages={49-56},
volume={0},
issue={4},
}