The Common Properties of Plerions and Active Galactic Nuclei [chapter]

N. Panagia, K. W. Weiler
1981 Origin of Cosmic Rays  
Electromagnetic, spectra of the Crab Nebula (upper curve) and BL Lacertae (lower curve).
doi:10.1007/978-94-009-8475-2_23 fatcat:4mzzkhy2gjdezkvuu5czv5qgeu