@incollection{JEDP_1986____A10_0, author = {Johannes Sj\"ostrand}, title = {Semiclassical resonances in some simple cases}, booktitle = {}, series = {Journ\'ees \'equations aux d\'eriv\'ees partielles}, eid = {10}, pages = {1--12}, publisher = {\'Ecole polytechnique}, year = {1986}, doi = {10.5802/jedp.315}, zbl = {0609.35069}, language = {en}, url = {https://proceedings.centre-mersenne.org/articles/10.5802/jedp.315/} }