@article{JEDP_1996____A1_0, author = {Agmon, Shmuel}, title = {A perturbation theory of resonances}, journal = {Journ\'ees \'equations aux d\'eriv\'ees partielles}, eid = {1}, pages = {1--11}, publisher = {Ecole polytechnique}, year = {1996}, zbl = {0902.47007}, language = {en}, url = {http://www.numdam.org/item/JEDP_1996____A1_0/} }
Agmon, Shmuel. A perturbation theory of resonances. Journées équations aux dérivées partielles (1996), article no. 1, 11 p. http://www.numdam.org/item/JEDP_1996____A1_0/
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