T. Hsyu, R. Cooke, J. Prochaska, und M. Bolte. (2017)cite arxiv:1708.01260Comment: 8 pages, 3 figures, Accepted for publication in the Astrophysical Journal Letters.
M. Collaboration, M. Ahnen, S. Ansoldi, A. Antonelli, P. Antoranz, A. Babic, B. Banerjee, P. Bangale, U. de Almeida, J. Barrio und 244 andere Autor(en). (2015)cite arxiv:1512.04435Comment: Corresponding Authors: J. Becerra (josefa.becerra@nasa.gov), M. Nievas Rosillo (miguelnievas@ucm.es), M. Manganaro (manganaro@iac.es), F. Tavecchio (fabrizio.tavecchio@brera.inaf.it) To be published in The Astrophysical Journal Letters (ApJL).