TY - JOUR AU - Filipe Kelmer AU - Keti Tenenblat TI - Superposition Formulae for the Geometric Bäcklund Transformations of the Hyperbolic and Elliptic Sine-Gordon and Sinh-Gordon Equations JO - Symmetry, integrability and geometry: methods and applications PY - 2024 VL - 20 UR - http://geodesic.mathdoc.fr/item/SIGMA_2024_20_a14/ LA - en ID - SIGMA_2024_20_a14 ER -