TY - JOUR AU - Giovanni Ortenzi TI - Some Remarks on the KP System of the Camassa–Holm Hierarchy JO - Symmetry, integrability and geometry: methods and applications PY - 2007 VL - 3 UR - http://geodesic.mathdoc.fr/item/SIGMA_2007_3_a46/ LA - en ID - SIGMA_2007_3_a46 ER -