@incollection{JEDP_1990____A5_0,
     author = {Vesselin M. Petkov},
     title = {Phase de diffusion pour des perturbations captives},
     booktitle = {},
     series = {Journ\'ees \'equations aux d\'eriv\'ees partielles},
     eid = {5},
     pages = {1--10},
     publisher = {\'Ecole polytechnique},
     year = {1990},
     zbl = {0718.35007},
     mrnumber = {92e:35121},
     language = {fr},
     url = {https://proceedings.centre-mersenne.org/item/JEDP_1990____A5_0/}
}