@article{CMFD_2017_63_3_a0,
     author = {D. I. Borisov},
     title = {On lacunas in the lower part of the spectrum of the periodic magnetic operator in a~strip},
     journal = {Contemporary Mathematics. Fundamental Directions},
     pages = {373--391},
     publisher = {mathdoc},
     volume = {63},
     number = {3},
     year = {2017},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/CMFD_2017_63_3_a0/}
}