On various rank conditions in infinite groups von Dixon, M. R., Kurdachenko, L. A., Subbotin, I. Ya.

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On the non–periodic groups, whose subgroups of infinite special rank are transitively normal von Kurdachenko, L. A., Subbotin, I. Ya., Velychko, T. V.

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On groups whose subgroups of infinite special rank are transitively normal von Semko, Nicolai N., Velychko, Tatyana V.

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