The non rationality of the generic Enriques' threefold
Compositio Mathematica, Tome 48 (1983) no. 2, pp. 167-184. 
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     author = {Botta, Luciana Picco and Verra, Alessandro},
     title = {The non rationality of the generic {Enriques'} threefold},
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     number = {2},
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     url = {http://archive.numdam.org/item/CM_1983__48_2_167_0/}
}
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Botta, Luciana Picco; Verra, Alessandro. The non rationality of the generic Enriques' threefold. Compositio Mathematica, Tome 48 (1983) no. 2, pp. 167-184. http://archive.numdam.org/item/CM_1983__48_2_167_0/

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