- Vicente Cortés, Jeremias Ehlert, Alexander S. Haupt, David Lindemann, “Classification of left-invariant Einstein metrics on $\textrm{SL}(2,\mathbb {R})\times \textrm{SL}(2,\mathbb {R})$ that are bi-invariant under a one-parameter subgroup”, Ann Glob Anal Geom, 63, № 2, 2023, 16
- Romina M. Arroyo, Ramiro Lafuente, “Homogeneous Ricci Solitons in Low Dimensions”, Int Math Res Notices, 2015, № 13, 2015, 4901
- YU. G. Nikonorov, “Noncompact Homogeneous Einstein 5-Manifolds”, Geom Dedicata, 113, № 1, 2005, 107