@article{SEDP_1988-1989____A4_0,
     author = {Melin, A.},
     title = {The {Lippman-Schwinger} equation treated as a characteristic {Cauchy} problem},
     journal = {S\'eminaire \'Equations aux d\'eriv\'ees partielles (Polytechnique) dit aussi "S\'eminaire Goulaouic-Schwartz"},
     note = {talk:4},
     pages = {1--7},
     publisher = {Ecole Polytechnique, Centre de Math\'ematiques},
     year = {1988-1989},
     mrnumber = {1032280},
     zbl = {0702.35065},
     language = {en},
     url = {http://www.numdam.org/item/SEDP_1988-1989____A4_0/}
}