1. |
B. Bonnard, G. Launay, E. Trélat, “The transcendence required for computing the sphere and wave front in the Martinet sub-Riemannian geometry”, Itogi Nauki i Tekhniki. Sovrem. Mat. Pril. Temat. Obz., 64 (1999), 82–117 ; J. Math. Sci. (New York), 103:6 (2001), 686–708 |
1
|