TY - JOUR AU - Volodymyr B. Taranov TI - Symmetry Extensions and Their Physical Reasons in the Kinetic and Hydrodynamic Plasma Models JO - Symmetry, integrability and geometry: methods and applications PY - 2008 VL - 4 UR - http://geodesic.mathdoc.fr/item/SIGMA_2008_4_a5/ LA - en ID - SIGMA_2008_4_a5 ER -