@article{SIGMA_2013_9_a78,
     author = {Luc Haine and Didier Vanderstichelen},
     title = {A {Centerless} {Virasoro} {Algebra} of {Master} {Symmetries} for the {Ablowitz{\textendash}Ladik} {Hierarchy}},
     journal = {Symmetry, integrability and geometry: methods and applications},
     year = {2013},
     volume = {9},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SIGMA_2013_9_a78/}
}