@article{BSMF_1974__102__75_0,
     author = {Joseph, Anthony},
     title = {Symplectic structure in the enveloping algebra of a {Lie} algebra},
     journal = {Bulletin de la Soci\'et\'e Math\'ematique de France},
     pages = {75--83},
     publisher = {Soci\'et\'e math\'ematique de France},
     volume = {102},
     year = {1974},
     doi = {10.24033/bsmf.1770},
     mrnumber = {50 #4678},
     zbl = {0291.17008},
     language = {en},
     url = {http://www.numdam.org/articles/10.24033/bsmf.1770/}
}