@article{GDZPPN002206455,
title = {The centralizer of a Lie algebra in an enveloping algebra.},
journal = {Journal f\"ur die reine und angewandte Mathematik},
volume = {394},
year = {1989},
pages = {196-201},
zbl = {0661.17010},
url = {http://dml.mathdoc.fr/item/GDZPPN002206455}
}
Johnson, Kenneth D. The centralizer of a Lie algebra in an enveloping algebra.. Journal für die reine und angewandte Mathematik, Tome 394 (1989) pp. 196-201. http://gdmltest.u-ga.fr/item/GDZPPN002206455/