Centers of Γ-isotypity in abelian groups
Rendiconti del Seminario Matematico della Università di Padova, Tome 65 (1981), pp. 271-276. 
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     author = {Be\v{c}v\'a\v{r}, Jind\v{r}ich},
     title = {Centers of $\Gamma $-isotypity in abelian groups},
     journal = {Rendiconti del Seminario Matematico della Universit\`a di Padova},
     pages = {271--276},
     publisher = {Seminario Matematico of the University of Padua},
     volume = {65},
     year = {1981},
     zbl = {0484.20025},
     language = {en},
     url = {http://www.numdam.org/item/RSMUP_1981__65__271_0/}
}
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Bečvář, Jindřich. Centers of $\Gamma $-isotypity in abelian groups. Rendiconti del Seminario Matematico della Università di Padova, Tome 65 (1981), pp. 271-276. http://www.numdam.org/item/RSMUP_1981__65__271_0/

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