@article{PFMT_2011_2_a2,
     author = {V. N. Belyi and N. S. Kazak and N. A. Khilo and P. I. Ropot and R. Yu. Vasilyev},
     title = {Local spectra of spatial frequencies of {Bessel} beams},
     journal = {Problemy fiziki, matematiki i tehniki},
     pages = {15--21},
     publisher = {mathdoc},
     number = {2},
     year = {2011},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/PFMT_2011_2_a2/}
}