Bashun, S. Y. (2019). Finite simple groups with Hall $\{2, r\}$-subgroups, $r \in π(G) \backslash \{2, t\}$, $t \in π(G) $.
Ukrains’kyi Matematychnyi Zhurnal
,
71
(6), 852-857.
https://umj.imath.kiev.ua/index.php/umj/article/view/1480