@article{BSMF_2008__136_3_329_0,
     author = {Pravda-Starov, Karel},
     title = {Pseudo-spectrum for a class of semi-classical operators},
     journal = {Bulletin de la Soci\'et\'e Math\'ematique de France},
     pages = {329--372},
     publisher = {Soci\'et\'e math\'ematique de France},
     volume = {136},
     number = {3},
     year = {2008},
     doi = {10.24033/bsmf.2559},
     mrnumber = {2415346},
     zbl = {1210.35310},
     language = {en},
     url = {http://archive.numdam.org/articles/10.24033/bsmf.2559/}
}