@article{AA_2005_17_5_a5,
     author = {M. M. Skriganov and A. V. Sobolev},
     title = {On the spectrum of polyharmonic operators with limit-periodic potentials},
     journal = {Algebra i analiz},
     pages = {164--189},
     publisher = {mathdoc},
     volume = {17},
     number = {5},
     year = {2005},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AA_2005_17_5_a5/}
}