no. 2
Algebraic systems of linearly equivalent divisor-like subschemes
Compositio Mathematica, Tome 29 (1974) no. 2, pp. 113-139. 
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     title = {Algebraic systems of linearly equivalent divisor-like subschemes},
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     number = {2},
     year = {1974},
     zbl = {0337.14009},
     mrnumber = {376668},
     language = {en},
     url = {http://www.numdam.org/item/CM_1974__29_2_113_0/}
}
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Altman, Allen B.; Kleiman, Steven L. Algebraic systems of linearly equivalent divisor-like subschemes. Compositio Mathematica, Tome 29 (1974) no. 2, pp. 113-139. http://www.numdam.org/item/CM_1974__29_2_113_0/

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