Ein allgemeiner Sylowsatz in endlichen auflösbaren Gruppen.
Eine Charakterisierung einiger einfacher sporadischer Gruppen
Equations in groups, with special emphasis on localization and torsion - II
Erratum to: “Subnormal, permutable, and embedded subgroups in finite groups”
The original version of the article was published in Central European Journal of Mathematics, 2011, 9(4), 915–921, DOI: 10.2478/s11533-011-0029-8. Unfortunately, the original version of this article contains a mistake: Lemma 2.1 (2) is not true. We correct Lemma 2.2 (2) and Theorem 1.1 in our paper where this lemma was used.