@article{AIF_2013__63_3_985_0,
     author = {Hitrik, Michael and Pravda-Starov, Karel},
     title = {Eigenvalues and subelliptic estimates for non-selfadjoint semiclassical operators with double characteristics},
     journal = {Annales de l'Institut Fourier},
     pages = {985--1032},
     publisher = {Association des Annales de l{\textquoteright}institut Fourier},
     volume = {63},
     number = {3},
     year = {2013},
     doi = {10.5802/aif.2782},
     mrnumber = {3137478},
     zbl = {1292.35185},
     language = {en},
     url = {https://aif.centre-mersenne.org/articles/10.5802/aif.2782/}
}