@article{01631348,
title = {Characterization of the Kantor-Koecher-Tits algebra by a generalized Ahlfors operator.},
journal = {Journal of Lie Theory},
volume = {11},
year = {2001},
pages = {415-426},
zbl = {1049.53037},
language = {en},
url = {http://dml.mathdoc.fr/item/01631348}
}
Bertram, Wolfgang; Hilgert, Joachim. Characterization of the Kantor-Koecher-Tits algebra by a generalized Ahlfors operator.. Journal of Lie Theory, Tome 11 (2001) pp. 415-426. http://gdmltest.u-ga.fr/item/01631348/