„QR-Submanifold of a Manifold with a Kenmotsu 3-Structure” (2021) iJournals:International Journal of Software & Hardware Research in Engineering ISSN:2347-4890, 9(7). Disponibil la: https://ijournals.in/journal/index.php/ijshre/article/view/53 (Data accesării: 21 octombrie 2026).