@article{01969392,
title = {Strange phenomena related to ordering problems in quantizations.},
journal = {Journal of Lie Theory},
volume = {13},
year = {2003},
pages = {481-510},
zbl = {1046.53057},
language = {en},
url = {http://dml.mathdoc.fr/item/01969392}
}
Omori, Hideki; Maeda, Yoshiaki; Miyazaki, Naoya; Yoshioka, Akira. Strange phenomena related to ordering problems in quantizations.. Journal of Lie Theory, Tome 13 (2003) pp. 481-510. http://gdmltest.u-ga.fr/item/01969392/