SHARMA, S.; DHUNGEL, P.; KHANAL, U. Stress Tensor of Free Maxwell Field in Friedmann-Robertson-Walker Universe. Scientific World, [S. l.], v. 7, n. 7, p. 1–2, 2010. DOI: 10.3126/sw.v7i7.3814. Disponível em: https://nepjol.info/index.php/SW/article/view/3814. Acesso em: 19 may. 2024.