A possible connection between gamma–ray bursts and single black holesG. M. Beskin, A. Shearer, A. Golden, C. Bartolini, A. Guarnieri, A. Piccioni and N. MasettiAstron. Astrophys. Suppl. Ser., 138 3 (1999) 509-510DOI: https://doi.org/10.1051/aas:1999329