%0 Journal Article %A E. P. Golubeva %T Spectrum of Levy constants for quadratic irrationalities %J Zapiski Nauchnykh Seminarov POMI %D 2000 %P 20-33 %V 263 %U http://geodesic.mathdoc.fr/item/ZNSL_2000_263_a2/ %G ru %F ZNSL_2000_263_a2