Eichler2:
- Figure 1: The Crab Nebula in X-ray;
--- Credits: X-ray: NASA/CXC/ASU/J. Hester et al.; Optical: NASA/HST/ASU/J. Hester et al. ;
--- Source: http://chandra.harvard.edu/photo/2002/0052/more.html
- Figure 2: Synchrotron emission simulation of the Crab Nebula;
--- Source: Komissarov S.S. Lyubarsky Y.E. 2003, MNRAS, 344, L93.