@article{SIGMA_2011_7_a52,
     author = {Kurt Bernardo Wolf and Luis Edgar Vicent},
     title = {The {Fourier} $\mathsf U(2)$ {Group} and {Separation} of {Discrete} {Variables}},
     journal = {Symmetry, integrability and geometry: methods and applications},
     year = {2011},
     volume = {7},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SIGMA_2011_7_a52/}
}