1. Sub-Riemannian Geometry,1996
2. Sub-Riemannian Geometry: General Theory and Exemples;Calin,2009
3. On the geometry induced by a Grushin operator;Calin,2005
4. Geometric Modeling in Probability and Statistics;Calin,2014
5. A stochastic variant of Chow–Rashevski Theorem on the Grushin distribution;Calin;Balkan J. Geom. Appl.,2014