TY - JOUR AU - Ismagil T. Habibullin TI - Characteristic Algebras of Fully Discrete Hyperbolic Type Equations JO - Symmetry, integrability and geometry: methods and applications PY - 2005 VL - 1 UR - http://geodesic.mathdoc.fr/item/SIGMA_2005_1_a22/ LA - en ID - SIGMA_2005_1_a22 ER -