Geodesic
Automorphisms of nonsplit coverings of $PSL_2(q)$ in odd characteristic dividing $q-1$
Sibirskie èlektronnye matematičeskie izvestiâ, Tome 19 (2022) no. 1, pp. 285-291

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We classify the nonsplit extensions of elementary abelian $p$-groups by $\operatorname{PSL}_2(q)$, with odd $p$ dividing $q-1$, for an irreducible induced action, calculate the relevant low-dimensional cohomology groups, and describe the automorphism groups of such extensions. 
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     title = {Automorphisms of nonsplit coverings of $PSL_2(q)$ in odd characteristic dividing $q-1$},
     journal = {Sibirskie \`elektronnye matemati\v{c}eskie izvesti\^a},
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Andrei V. Zavarnitsine. Automorphisms of nonsplit coverings of $PSL_2(q)$ in odd characteristic dividing $q-1$. Sibirskie èlektronnye matematičeskie izvestiâ, Tome 19 (2022) no. 1, pp. 285-291. http://geodesic.mathdoc.fr/item/SEMR_2022_19_1_a11/