@article{SIGMA_2007_3_a46,
     author = {Giovanni Ortenzi},
     title = {Some {Remarks} on the {KP} {System} of the {Camassa{\textendash}Holm} {Hierarchy}},
     journal = {Symmetry, integrability and geometry: methods and applications},
     year = {2007},
     volume = {3},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SIGMA_2007_3_a46/}
}