@article{JEDP_1997____A15_0,
     author = {Guillot, Jean-Claude and Ralston, James},
     title = {Inverse {Scattering} at fixed energy for stratified media},
     journal = {Journ\'ees \'equations aux d\'eriv\'ees partielles},
     eid = {15},
     pages = {1--7},
     publisher = {Ecole polytechnique},
     year = {1997},
     mrnumber = {1482281},
     zbl = {01808673},
     language = {en},
     url = {http://www.numdam.org/item/JEDP_1997____A15_0/}
}