1. http://www.esa.int/Our_Activities/Space_Science/Athena_to_study_the_hot_and_energetic_Universe
2. Nandra, K., Barret, D., Barcons, X., Fabian, A.C., den Herder, J.W., Piro, L., Watson, M.G., “Athena: exploring the hot and energetic universe,” Proc. SPIE 9144, this conference
3. Willingale, R., Pareschi, G., Christensen, F.E., den Herder, J.W., Della Monica Ferreira, D., Jakobsen, A.C., Collon, M., Bavdaz, M., Ackermann, M., “Science requirements and optimization of the silicon pore optics design for the Athena mirror,” Proc. SPIE 9144, this conference
4. Design Parameters of Paraboloid-Hyperboloid Telescopes for X-ray Astronomy
5. X-ray optics developments at ESA;Bavdaz,2013