@article{SIGMA_2010_6_a26,
     author = {Taichiro Takagi},
     title = {Level {Set} {Structure} of an {Integrable} {Cellular} {Automaton}},
     journal = {Symmetry, integrability and geometry: methods and applications},
     year = {2010},
     volume = {6},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SIGMA_2010_6_a26/}
}