1. Dynamical Systems VII, Integrable Systems, Nonholonomic Dynamical Systems – Chap 1 – Nonholonomic Dynamical Systems,Geometry of Distributions and Variational Problems;Vershik,2007
2. Nonholonomic Mechanics and Control, Interdisciplinary Applied Mathematics;Bloch,2007
3. A tour of sub-Riemannian geometries, their geodesics and applications;Montgomery,2002
4. About connecting two points of complete nonholonomic space by admissible curve;Rashevsky;Uch. Zapiski Ped.,1938
5. Enrico Le Donne, Lecture notes on sub-Riemannian geometry, Preprint, 2010.