Klepikov, Pavel, Evgenii Rodionov, and Olesya Khromova. “Einstein Equation on Three-Dimensional Locally Homogeneous (pseudo)Riemannian Manifolds With Vectorial Torsion”. Mathematical notes of NEFU 28, no. 4 (February 1, 2022): 30-47. Accessed September 13, 2024. https://mzsvfu.ru/index.php/mz/article/view/einstein-equation-on-three-dimensional-locally-homogeneous.