@article{IM_1977__39_142455,
     author = {W. Borho and J.C. Jantzen},
     title = {\"Uber primitive {Ideale} in der {Einh\"ullenden} einer halbeinfachen {Lie-Algebra}},
     journal = {Inventiones mathematicae},
     pages = {1--54},
     publisher = {mathdoc},
     volume = {39},
     year = {1977},
     zbl = {0327.17002},
     url = {http://geodesic.mathdoc.fr/item/IM_1977__39_142455/}
}