On binary-driven hypernovae and their nested late X-ray emission R. Ruffini, M. Muccino, C. L. Bianco, M. Enderli, L. Izzo, M. Kovacevic, A. V. Penacchioni, G. B. Pisani, J. A. Rueda and Y. Wang A&A, 565 (2014) L10 Published online: 26 May 2014 DOI: 10.1051/0004-6361/201423812