Purity of the branch locus and Lefschetz theorems
Compositio Mathematica, Tome 96 (1995) no. 2, pp. 173-195. 
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     author = {Cutkosky, Steven Dale},
     title = {Purity of the branch locus and {Lefschetz} theorems},
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     pages = {173--195},
     publisher = {Kluwer Academic Publishers},
     volume = {96},
     number = {2},
     year = {1995},
     mrnumber = {1326711},
     zbl = {0878.13014},
     language = {en},
     url = {http://www.numdam.org/item/CM_1995__96_2_173_0/}
}
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Cutkosky, Steven Dale. Purity of the branch locus and Lefschetz theorems. Compositio Mathematica, Tome 96 (1995) no. 2, pp. 173-195. http://www.numdam.org/item/CM_1995__96_2_173_0/

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