S. Borza: Distortion Coefficients of the $\alpha$-Grushin Plane The Journal of Geometric Analysis Vol. 32, N. Issue 3, p. Article 78, 2022 S. Borza, K. Tashiro: Measure contraction property, curvature exponent and geodesic dimension of sub-Finsler Heisenberg groups (preprint) 2023 S. Borza, W. Klingenberg: Regularity and Continuity Properties of the Sub-Riemannian Exponential Map Journal of Dynamical and Control Systems 2023 S. Borza, M. Magnabosco, T. Rossi, K. Tashiro: Measure contraction property and curvature-dimension condition on sub-Finsler Heisenberg groups (preprint) 2024