Preparata G.; Ruffini R.; Xue S.-S. (1998). "The dyadosphere of black holes and gamma-ray bursts". Astronomy and Astrophysics. 338: L87 –L90. arXiv:astro-ph/9810182. Bibcode:1998A&A...338L..87P.
Preparata G.; Ruffini R.; Xue S.-S. (1998). "The dyadosphere of black holes and gamma-ray bursts". Astronomy and Astrophysics. 338: L87 –L90. arXiv:astro-ph/9810182. Bibcode:1998A&A...338L..87P.