@article{IM_1979__55_186130,
     author = {Wim H. Hesselink},
     title = {Desingularizations of {Varieties} of {Nullforms.}},
     journal = {Inventiones mathematicae},
     pages = {141--164},
     publisher = {mathdoc},
     volume = {55},
     year = {1979},
     zbl = {0401.14006},
     url = {http://geodesic.mathdoc.fr/item/IM_1979__55_186130/}
}