Semigroups with certain finiteness conditions and Chernikov groups von Shevrin, L. N.

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A generalization of groups with many almost normal subgroups von Russo, Francesco G.

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S. N. Chernikov and the development of infinite group theory von Dixon, M. R., Kirichenko, V. V., Kurdachenko, L. A., Otal, J., Semko, N. N., Shemetkov, L. A., Subbotin, I. Ya.

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