arXiv · 1312.0313
It is shown that two formations of finite groups, one was introduced by V.S. Monakhov and V.N. Kniahina and another one was introduced by R. Brandl, are coincides.
Viachaslau I. Murashka. 2013-12-02. One formation of finite groups. https://arxiv.org/abs/1312.0313
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