Multiwavelength Observations of Markarian 421 in 2005-2006DOI: info:10.1088/0004-637X/695/1/596v. 695596–618
Horan, D., Acciari, V. A., Bradbury, S. M., Buckley, J. H., Bugaev, V., Byrum, K. L., Cannon, A., Celik, O., Cesarini, A., Chow, Y. C. K., Ciupik, L., Cogan, P., Falcone, Abraham, Fegan, S. J., Finley, J. P., Fortin, P., Fortson, L. F., Gall, D., Gillanders, G. H., Grube, J., Gyuk, G., Hanna, D., Hays, E., Kertzman, M., Kildea, J. et al. 2009. "Multiwavelength Observations of Markarian 421 in 2005-2006." The Astrophysical Journal, 695 596–618. https://doi.org/10.1088/0004-637X/695/1/596.