@article{SEDP_1981-1982____A20_0,
     author = {Beals, R. and Coifman, R.},
     title = {Scattering, transformations spectrales et \'equations d'\'evolution non lin\'eaire {II}},
     journal = {S\'eminaire \'Equations aux d\'eriv\'ees partielles (Polytechnique) dit aussi "S\'eminaire Goulaouic-Schwartz"},
     note = {talk:21},
     pages = {1--8},
     publisher = {Ecole Polytechnique, Centre de Math\'ematiques},
     year = {1981-1982},
     zbl = {0496.35071},
     language = {fr},
     url = {http://www.numdam.org/item/SEDP_1981-1982____A20_0/}
}