The extended ROSAT-ESO Flux-Limited X-ray Galaxy Cluster Survey (REFLEX II) - V. Exploring a local underdensity in the southern skyHans Böhringer, Gayoung Chon, Martyn Bristow and Chris A. CollinsA&A, 574 (2015) A26DOI: https://doi.org/10.1051/0004-6361/201424817
