@incollection{JEDP_2006____A10_0, author = {V\~{u} Ngọc, San}, title = {The {Quantum} {Birkhoff} {Normal} {Form} and {Spectral} {Asymptotics}}, booktitle = {}, series = {Journ\'ees \'equations aux d\'eriv\'ees partielles}, eid = {10}, pages = {1--12}, publisher = {Groupement de recherche 2434 du CNRS}, year = {2006}, doi = {10.5802/jedp.37}, language = {en}, url = {http://www.numdam.org/articles/10.5802/jedp.37/} }