The International Reference Ionosphere 2012 – a model of international collaborationDieter Bilitza, David Altadill, Yongliang Zhang, Chris Mertens, Vladimir Truhlik, Phil Richards, Lee-Anne McKinnell and Bodo ReinischJ. Space Weather Space Clim., 4 (2014) A07DOI: https://doi.org/10.1051/swsc/2014004
