@article{JEMS_2012_14_1_a1,
     author = {Artur Avila and Jairo Bochi and David Damanik},
     title = {Opening gaps in the spectrum of strictly ergodic {Schr\"odinger} operators},
     journal = {Journal of the European Mathematical Society},
     pages = {61--106},
     publisher = {mathdoc},
     volume = {14},
     number = {1},
     year = {2012},
     doi = {10.4171/jems/296},
     url = {http://geodesic.mathdoc.fr/articles/10.4171/jems/296/}
}