@incollection{JEDP_1986____A5_0,
     author = {Melin, Anders},
     title = {Intertwining methods in the problem of inverse scattering},
     booktitle = {},
     series = {Journ\'ees \'equations aux d\'eriv\'ees partielles},
     eid = {5},
     pages = {1--8},
     publisher = {Ecole polytechnique},
     year = {1986},
     mrnumber = {874547},
     zbl = {0618.35029},
     language = {en},
     url = {http://archive.numdam.org/item/JEDP_1986____A5_0/}
}