no. 2
Remarks on p-torsion of algebraic surfaces
Compositio Mathematica, Tome 52 (1984) no. 2, pp. 197-202. 
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     author = {Lang, William E.},
     title = {Remarks on $p$-torsion of algebraic surfaces},
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     publisher = {Martinus Nijhoff Publishers},
     volume = {52},
     number = {2},
     year = {1984},
     mrnumber = {750355},
     zbl = {0583.14012},
     language = {en},
     url = {http://www.numdam.org/item/CM_1984__52_2_197_0/}
}
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Lang, William E. Remarks on $p$-torsion of algebraic surfaces. Compositio Mathematica, Tome 52 (1984) no. 2, pp. 197-202. http://www.numdam.org/item/CM_1984__52_2_197_0/

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