U. C. De and S. Ghosh, “D-homothetic deformation of normal almost contact metric manifolds”, Ukr. Mat. Zhurn., vol. 64, no. 10, pp. 1330–1329, Oct. 2012, Accessed: Dec. 05, 2025. [Online]. Available: https://umj.imath.kiev.ua/index.php/umj/article/view/2662