PAUDYAL, H.; JOHRIB, M.; TIWARI, A. From Left Handed Materials to Invisible Cloak: Recent Advances. Himalayan Physics, [S. l.], v. 4, p. 18–26, 2013. DOI: 10.3126/hj.v4i0.9420. Disponível em: https://nepjol.info/index.php/HP/article/view/9420. Acesso em: 16 aug. 2024.