@article{SIGMA_2011_7_a26,
     author = {Jun Mada and Tetsuji Tokihiro},
     title = {Two {Point} {Correlation} {Functions} for {a~Periodic} {Box-Ball} {System}},
     journal = {Symmetry, integrability and geometry: methods and applications},
     year = {2011},
     volume = {7},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SIGMA_2011_7_a26/}
}