%0 Journal Article %A D. V. Zakharov %T Isoperiodic deformations of the acoustic operator and periodic solutions of the Harry Dym equation %J Teoretičeskaâ i matematičeskaâ fizika %D 2007 %P 46-57 %V 153 %N 1 %U http://geodesic.mathdoc.fr/item/TMF_2007_153_1_a3/ %G ru %F TMF_2007_153_1_a3