@article{CM_1989__69_1_83_0,
     author = {Greuel, Gert-Martin and Karras, Ulrich},
     title = {Families of varieties with prescribed singularities},
     journal = {Compositio Mathematica},
     pages = {83--110},
     publisher = {Kluwer Academic Publishers},
     volume = {69},
     number = {1},
     year = {1989},
     mrnumber = {986814},
     zbl = {0684.32015},
     language = {en},
     url = {http://www.numdam.org/item/CM_1989__69_1_83_0/}
}