Roland J. Egger, Bernd Aschenbach «Interaction of the Loop I supershell with the Local Hot Bubble». Astronomy and Astrophysics, 294, 2-1995, pàg. L25-L28. arXiv: astro-ph/9412086. Bibcode: 1995A&A...294L..25E.
Roland J. Egger, Bernd Aschenbach «Interaction of the Loop I supershell with the Local Hot Bubble». Astronomy and Astrophysics, 294, 2-1995, pàg. L25-L28. arXiv: astro-ph/9412086. Bibcode: 1995A&A...294L..25E.