@article{SM_1978_34_4_a1,
     author = {V. I. Bezyaev},
     title = {Asymptotics of the density of states of hypoelliptic almost periodic operators},
     journal = {Sbornik. Mathematics},
     pages = {425--447},
     publisher = {mathdoc},
     volume = {34},
     number = {4},
     year = {1978},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1978_34_4_a1/}
}