Gaya APA
Pitsch, Y, D, C, L, G, W.
(2010).
The space of subgroups of an abelian group
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Gaya MLA
Pitsch, Yves, De, Cornulier,, Luc, Guyot,, Wolfgang.
"The space of subgroups of an abelian group ".
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,
2010.
Text.