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@article{JRAM_1989__395_153119, author = {Kenneth D. Johnson}, title = {The centralizer of a {Lie} algebra in an enveloping algebra.}, journal = {Journal f\"ur die reine und angewandte Mathematik}, pages = {196--201}, publisher = {mathdoc}, volume = {395}, year = {1989}, zbl = {0661.17010}, url = {http://geodesic.mathdoc.fr/item/JRAM_1989__395_153119/} }
Kenneth D. Johnson. The centralizer of a Lie algebra in an enveloping algebra.. Journal für die reine und angewandte Mathematik, Tome 395 (1989), pp. 196-201. http://geodesic.mathdoc.fr/item/JRAM_1989__395_153119/