Properties Wreath product

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^ m. krasner , l. kaloujnine, produit complet des groupes de permutations et le problème d extension de groupes iii , acta sci. math. szeged 14, pp. 69-82 (1951)
^ j d p meldrum (1995). wreath products of groups , semigroups. longman [uk] / wiley [us]. p. ix. isbn 978-0-582-02693-3. 
^ joseph j. rotman, introduction theory of groups, p. 172 (1995)






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