KUMAR, Nanda Kishor. Symmetry in the context of the Almost Contact 3-Structure and Almost Quaternion Structure. Pragnya Sarathi प्रज्ञा-सारथि, [S. l.], v. 23, n. 1, p. 141–146, 2025. DOI: 10.3126/ps.v23i1.77528. Disponível em: https://www.nepjol.info/index.php/ps/article/view/77528. Acesso em: 7 dec. 2025.