@article{TMF_2007_153_1_a3,
     author = {D. V. Zakharov},
     title = {Isoperiodic deformations of the~acoustic operator and periodic solutions of {the~Harry} {Dym} equation},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {46--57},
     publisher = {mathdoc},
     volume = {153},
     number = {1},
     year = {2007},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_2007_153_1_a3/}
}