The isotropic 3-sphere.
Vogel, Walter O.
Mathematica Pannonica, Tome 6 (1995), p. 95-104 / Harvested from The Electronic Library of Mathematics
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Publié le : 1995-01-01
EUDML-ID : urn:eudml:doc:224234 
@article{00778322,
     title = {The isotropic 3-sphere.},
     journal = {Mathematica Pannonica},
     volume = {6},
     year = {1995},
     pages = {95-104},
     zbl = {0828.53021},
     language = {en},
     url = {http://dml.mathdoc.fr/item/00778322}
}

Vogel, Walter O. The isotropic 3-sphere.. Mathematica Pannonica, Tome 6 (1995) pp. 95-104. http://gdmltest.u-ga.fr/item/00778322/