@article{10_2307_121066,
     author = {Svetlana Ya. Jitomirskaya},
     title = {Metal-insulator transition for the almost {Mathieu} operator},
     journal = {Annals of mathematics},
     year = {1999},
     volume = {150},
     number = {3},
     doi = {10.2307/121066},
     zbl = {0946.47018},
     url = {http://geodesic.mathdoc.fr/articles/10.2307/121066/}
}