@incollection{JEDP_1993____A17_0,
     author = {Eskin, Gregory and Ralston, James},
     title = {Inverse scattering problems in several dimensions},
     booktitle = {},
     series = {Journ\'ees \'equations aux d\'eriv\'ees partielles},
     eid = {17},
     pages = {1--11},
     publisher = {Ecole polytechnique},
     year = {1993},
     mrnumber = {95d:81150},
     zbl = {0820.35138},
     language = {en},
     url = {http://archive.numdam.org/item/JEDP_1993____A17_0/}
}