„QR-Submanifold of a Manifold with a Kenmotsu 3-Structure”. iJournals:International Journal of Software & Hardware Research in Engineering ISSN:2347-4890 9, no. 7 (august 3, 2021). Data accesării octombrie 21, 2026. https://ijournals.in/journal/index.php/ijshre/article/view/53.