@article{05042350,
title = {Hochshild cohomology and equivalence of graded star products.},
journal = {Acta Mathematica Universitatis Comenianae. New Series},
volume = {75},
year = {2006},
pages = {31-41},
zbl = {1164.53404},
language = {en},
url = {http://dml.mathdoc.fr/item/05042350}
}
Ben Amar, N.; Chaabouni, M. Hochshild cohomology and equivalence of graded star products.. Acta Mathematica Universitatis Comenianae. New Series, Tome 75 (2006) pp. 31-41. http://gdmltest.u-ga.fr/item/05042350/