Upper limits on TeV gamma-ray emission from active galactic nuclei

por Kerrick, A.D., Akerlof, C.W., Biller, S., Buckley, J., Carter-Lewis, D.A., Cawley, M.F., Chantell, M., Connaughton, V., Fegan, D.J., Fennell, S., Gaidos, J., Hillas, A.M., Kwok, P.W., Lamb, R.C., Lappin, T., Lessard, R., Mcenery, J., Meyer, D.I., Mohanty, G., Quinn, J., Rose, H.J., Rovero, A.C., Sembroski, G., Schubnell, M.S., Punch, M., Weekes, T.C., West, M., Wilson, C., Zweerink, J.