@article{UFA_2017_9_3_a9,
     author = {O. A. Krivosheeva},
     title = {Invariant subspaces with  zero density spectrum},
     journal = {Ufa mathematical journal},
     pages = {100--108},
     publisher = {mathdoc},
     volume = {9},
     number = {3},
     year = {2017},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/UFA_2017_9_3_a9/}
}