(1998) Letters in Mathematical Physics : a journal for the rapid dissemination of short contributions in the field of mathematical physics — Vol. 46, n° 4, p. 339-345 (1998)
Bertelson, M., Bieliavsky, P., & Gutt, S. (1998). Parametrizing Equivalence Classes of Invariant Star Products. Letters in Mathematical Physics : a journal for the rapid dissemination of short contributions in the field of mathematical physics, 46(4), 339-345. https://doi.org/10.1023/A:1007598606137 (Original work published 1998)