@article{KUTGS_2003_24_a8,
     author = {I. A. Kuz'mina and B. N. Shapukov},
     title = {Conformal and elliptic models of {Hopf} bundle},
     journal = {Trudy Geometricheskogo Seminara},
     pages = {81--98},
     year = {2003},
     volume = {24},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/KUTGS_2003_24_a8/}
}