@article{SIGMA_2017_13_a34,
     author = {Jing Kang and Xiaochuan Liu and Peter J. Olver and Changzheng Qu},
     title = {Liouville {Correspondences} between {Integrable} {Hierarchies}},
     journal = {Symmetry, integrability and geometry: methods and applications},
     year = {2017},
     volume = {13},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SIGMA_2017_13_a34/}
}