@article{1104251143, author = {McMullan, David}, title = {Classical states and the BRST charge}, journal = {Comm. Math. Phys.}, volume = {143}, number = {2}, year = {1992}, pages = { 161-174}, language = {en}, url = {http://dml.mathdoc.fr/item/1104251143} }
McMullan, David. Classical states and the BRST charge. Comm. Math. Phys., Tome 143 (1992) no. 2, pp. 161-174. http://gdmltest.u-ga.fr/item/1104251143/