The factoriality of Zariski rings
Compositio Mathematica, Tome 63 (1987) no. 3, pp. 273-290. 
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     author = {Lang, Jeffrey},
     title = {The factoriality of {Zariski} rings},
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     pages = {273--290},
     publisher = {Martinus Nijhoff Publishers},
     volume = {63},
     number = {3},
     year = {1987},
     mrnumber = {909383},
     zbl = {0631.13017},
     language = {en},
     url = {http://archive.numdam.org/item/CM_1987__63_3_273_0/}
}
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Lang, Jeffrey. The factoriality of Zariski rings. Compositio Mathematica, Tome 63 (1987) no. 3, pp. 273-290. http://archive.numdam.org/item/CM_1987__63_3_273_0/

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