@article{SIGMA_2005_1_a7,
     author = {Anatoliy U. Klimyk},
     title = {Spectra of {Observables} in the $q${-Oscillator} and $q${-Analogue} of the {Fourier} {Transform}},
     journal = {Symmetry, integrability and geometry: methods and applications},
     year = {2005},
     volume = {1},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SIGMA_2005_1_a7/}
}