@article{IM_1990__101_2_143815,
     author = {E. Viehweg},
     title = {Weak positivity and the stability of certain {Hilbert} points, {III.}},
     journal = {Inventiones mathematicae},
     pages = {521--544},
     publisher = {mathdoc},
     volume = {101},
     number = {2},
     year = {1990},
     zbl = {0746.14014},
     url = {http://geodesic.mathdoc.fr/item/IM_1990__101_2_143815/}
}