@incollection{JEDP_1990____A4_0,
     author = {Yafaev, Dimitri R.},
     title = {On resonant scattering for time-periodic perturbations},
     booktitle = {},
     series = {Journ\'ees \'equations aux d\'eriv\'ees partielles},
     eid = {4},
     pages = {1--8},
     publisher = {Ecole polytechnique},
     year = {1990},
     mrnumber = {91j:81097},
     zbl = {0733.35088},
     language = {en},
     url = {http://www.numdam.org/item/JEDP_1990____A4_0/}
}