[1]
Belkhelfa, M. and Mahi, F. 2026. Second order parallel tensors on $S$ -manifolds and semi-parallel hypersurfaces of $S$ -space forms. Ukrains’kyi Matematychnyi Zhurnal. 71, 10 (Feb. 2026), 1422–1429. DOI:https://doi.org/10.3842/umzh.v71i10.1524.