@article{CM_1979__38_3_293_0,
     author = {Robbiano, Lorenzo},
     title = {A theorem on normal flatness},
     journal = {Compositio Mathematica},
     pages = {293--298},
     publisher = {Sijthoff et Noordhoff International Publishers},
     volume = {38},
     number = {3},
     year = {1979},
     mrnumber = {535072},
     zbl = {0415.13013},
     language = {en},
     url = {http://www.numdam.org/item/CM_1979__38_3_293_0/}
}