TY - JOUR AU - Marek Grochowski AU - Ben Warhurst TI - Invariants and Infinitesimal Transformations for Contact Sub-Lorentzian Structures on 3-Dimensional Manifolds JO - Symmetry, integrability and geometry: methods and applications PY - 2015 VL - 11 UR - http://geodesic.mathdoc.fr/item/SIGMA_2015_11_a30/ LA - en ID - SIGMA_2015_11_a30 ER -