On binary-driven hypernovae and their nested late X-ray emissionR. Ruffini, M. Muccino, C. L. Bianco, M. Enderli, L. Izzo, M. Kovacevic, A. V. Penacchioni, G. B. Pisani, J. A. Rueda and Y. WangA&A, 565 (2014) L10DOI: https://doi.org/10.1051/0004-6361/201423812