@article{MAN_1989__285_1_164586,
     author = {Georgia Benkart and Thomas Gregory},
     title = {Graded {Lie} algebras with classical reductive null component.},
     journal = {Mathematische Annalen},
     pages = {85--98},
     publisher = {mathdoc},
     volume = {285},
     number = {1},
     year = {1989},
     zbl = {0648.17005},
     url = {http://geodesic.mathdoc.fr/item/MAN_1989__285_1_164586/}
}