@InProceedings{Beckmann:2009,
author
=
"V.Beckmann and C.Ricci and S.Soldi and J.Alfonso-Garzón and T.Courvoisier and A.Domingo and N.Gehrels and P.Lubiński and J.Mas-Hesse and A.Zdziarski",
title
=
"Lessons learnt from INTEGRAL AGN",
booktitle
=
"The Extreme sky : Sampling the Universe above 10 keV",
address
=
"Otranto, Włochy",
publisher
=
"[B. m.] [brak wydawcy] ",
volume
=
"Proceedings of Science",
pages
=
"[6]",
year
=
"2009",
}