The XXL Survey. XXI. The environment and clustering of X-ray AGN in the XXL-South field
O. Melnyk, A. Elyiv, V. Smolcic, M. Plionis, E. Koulouridis, S. Fotopoulou, L. Chiappetti, C. Adami, N. Baran, A. Butler, J. Delhaize, I. Delvecchio, F. Finet, M. Huynh, C. Lidman, M. Pierre, E. Pompei, C. Vignali, J. Surdej
Received: 21 January 2017 / Accepted: 22 November 2017