@article{AA_2005_17_3_a5,
     author = {I. R. Kayumov},
     title = {Spectrum of integral means and the modified {Bessel} function of zero order},
     journal = {Algebra i analiz},
     pages = {107--123},
     publisher = {mathdoc},
     volume = {17},
     number = {3},
     year = {2005},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AA_2005_17_3_a5/}
}