2 citations to https://www.mathnet.ru/eng/semr680

1. A. V. Zavarnitsine, “Subextensions For Co-Induced Modules”, Sib. Electron. Math. Rep., 15 (2018), 554–560          
2. A. V. Zavarnitsine, “On the embedding of central extensions into permutation wreath products”, Siberian Math. J., 58:5 (2017), 813–816