Kurdachenko, L.A., Petrenko, B.V. and Subbotin, I.Y. (1997) “On complementability of certain generalized hypercenters in Artinian modules”, Ukrains’kyi Matematychnyi Zhurnal, 49(11), pp. 1548–1552. Available at: https://umj.imath.kiev.ua/index.php/umj/article/view/5154 (Accessed: 14 April 2025).