GRIB, A. A. The Idea of Eternity and Modern Relativistic Cosmology. Theoria et Historia Scientiarum, [S. l.], v. 3, p. 59–63, 2007. DOI: 10.12775/ths.1993.007. Disponível em: https://apcz.umk.pl/THS/article/view/ths.1993.007. Acesso em: 23 jul. 2024.