@article{01852867,
title = {The quantum spheres and their embedding into quantum Minkowski space-time.},
journal = {Journal of Applied Mathematics},
volume = {2},
year = {2002},
pages = {315-335},
doi = {10.1155/S1110757X0211103X},
zbl = {1014.83025},
language = {en},
url = {http://dml.mathdoc.fr/item/01852867}
}
Lagraa, M. The quantum spheres and their embedding into quantum Minkowski space-time.. Journal of Applied Mathematics, Tome 2 (2002) pp. 315-335. doi : 10.1155/S1110757X0211103X. http://gdmltest.u-ga.fr/item/01852867/