@incollection{JEDP_1987____A3_0,
     author = {Melin, Anders},
     title = {Some problems in inverse scattering theory},
     booktitle = {},
     series = {Journ\'ees \'equations aux d\'eriv\'ees partielles},
     eid = {3},
     pages = {1--3},
     publisher = {Ecole polytechnique},
     year = {1987},
     mrnumber = {919998},
     zbl = {0641.35053},
     language = {en},
     url = {http://archive.numdam.org/item/JEDP_1987____A3_0/}
}