VIBHA SRIVASTAVA; P. N. PANDEY. Doubly Twisted Product Contact CR-Submanifolds in Quasi-Sasakian Manifolds. Journal of International Academy of Physical Sciences, [S. l.], v. 21, n. 2, p. 91–96, 2017. Disponível em: https://www.iaps.org.in/journal/index.php/journaliaps/article/view/447. Acesso em: 19 may. 2024.