@article{MZM_2020_107_6_a15,
     author = {A. A. Fedotov and E. V. Shchetka},
     title = {The {Spectrum} and {Density} of {States} of the {Almost} {Mathieu} {Operator
}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {948--953},
     publisher = {mathdoc},
     volume = {107},
     number = {6},
     year = {2020},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2020_107_6_a15/}
}