@article{SIGMA_2011_7_a2,
     author = {Doojin Hong},
     title = {Intertwinors on {Functions} over the {Product} of {Spheres}},
     journal = {Symmetry, integrability and geometry: methods and applications},
     year = {2011},
     volume = {7},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SIGMA_2011_7_a2/}
}