@article {22754,
	title = {The contribution of active Galactic nuclei to the diffuse gamma-ray background},
	volume = {20},
	year = {1994},
	month = {1994/06/1},
	pages = {979 - 990},
	abstract = {We consider the emission of high energy to very high energy $\gamma$-rays in radio-quiet active galactic nuclei (AGN) or the central regions of radio-loud AGN. We use our results to estimate the $\gamma$-ray flux from the central regions of nearby AGN, and then to calculate the contribution to the diffuse $\gamma$-ray flux from unresolved AGN.},
	keywords = {Astrophysics},
	isbn = {0954-3899},
	url = {https://ui.adsabs.harvard.edu/abs/1994JPhG...20..979J},
	author = {Johnson, P. A. and Mastichiadis, A. and Protheroe, R. J. and Stanev, T. S. and Szabo, A. P.}
}
