@article{TMF_2007_152_1_a3,
     author = {Yu.-T. Chen and J.-H. Chang and M. H. Tu},
     title = {Additional symmetries and {B\"acklund} transformations for the~dispersionless {Harry} {Dym} hierarchy},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {45--57},
     publisher = {mathdoc},
     volume = {152},
     number = {1},
     year = {2007},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_2007_152_1_a3/}
}