@article{GDZPPN00248515X,
title = {A Contraction of S U (2) to the Heisenberg Group.},
journal = {Monatshefte f\"ur Mathematik},
volume = {102},
year = {1986},
pages = {211-226},
zbl = {0588.43007},
url = {http://dml.mathdoc.fr/item/GDZPPN00248515X}
}
Ricci, Fulvio. A Contraction of S U (2) to the Heisenberg Group.. Monatshefte für Mathematik, Tome 102 (1986) pp. 211-226. http://gdmltest.u-ga.fr/item/GDZPPN00248515X/