no. 2
On the group orders of elliptic curves over finite fields
Compositio Mathematica, Tome 85 (1993) no. 2, pp. 229-247. 
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     pages = {229--247},
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     number = {2},
     year = {1993},
     mrnumber = {1204781},
     zbl = {0793.14023},
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     url = {http://archive.numdam.org/item/CM_1993__85_2_229_0/}
}
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Howe, Everett W. On the group orders of elliptic curves over finite fields. Compositio Mathematica, Tome 85 (1993) no. 2, pp. 229-247. http://archive.numdam.org/item/CM_1993__85_2_229_0/

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