@article{IM_1981__65_142852,
     author = {Walter Borho},
     title = {\"Uber {Schichten} halbeinfacher {Lie-Algebren.}},
     journal = {Inventiones mathematicae},
     pages = {283--318},
     publisher = {mathdoc},
     volume = {65},
     year = {1981},
     zbl = {0484.17004},
     url = {http://geodesic.mathdoc.fr/item/IM_1981__65_142852/}
}