- Alexander Lytchak, “On conformal planes of finite area”, Math. Z., 305, № 3, 2023, 50
- I. D. Berg, I. G. Nikolaev, “Quasilinearization and curvature of Aleksandrov spaces”, Geom Dedicata, 133, № 1, 2008, 195
- Christian Lange, “Orbifolds and Manifold Quotients with Upper Curvature Bounds”, Transformation Groups, 2024
- Stephanie Alexander, Richard Bishop, “The Fary-Milnor theorem in Hadamard manifolds”, Proc. Amer. Math. Soc., 126, № 11, 1998, 3427