BHATNAGAR, V. M. Some observations on clathrate compounds. Defence Science Journal, [S. l.], v. 14, n. 2, p. 157–160, 2014. DOI: 10.14429/dsj.14.7145. Disponível em: https://publications.drdo.gov.in/ojs/index.php/dsj/article/view/7145. Acesso em: 16 jun. 2025.