International Symposium on High Energy Gamma-Ray Astronomy <4th, Heidelberg, Germany>, Aharonian, F. A., Hofmann, W., & Rieger, F. M. (2009). High energy gamma-ray astronomy: 4th International Meeting on High Energy Gamma-Ray Astronomy ; Heidelberg, Germany, 7-11 July 2008. American Institute of Physics.
Chicago-Zitierstil (17. Ausg.)International Symposium on High Energy Gamma-Ray Astronomy <4th, Heidelberg, Germany>, Felix A. Aharonian, Werner Hofmann, und Frank M. Rieger. High Energy Gamma-ray Astronomy: 4th International Meeting on High Energy Gamma-Ray Astronomy ; Heidelberg, Germany, 7-11 July 2008. Melville, New York: American Institute of Physics, 2009.
MLA-Zitierstil (9. Ausg.)International Symposium on High Energy Gamma-Ray Astronomy <4th, Heidelberg, Germany>, et al. High Energy Gamma-ray Astronomy: 4th International Meeting on High Energy Gamma-Ray Astronomy ; Heidelberg, Germany, 7-11 July 2008. American Institute of Physics, 2009.