author        = "Dafni, T. and Arik, M. and Armengaud, E. and Aune, S. and
                       Avignone, F.T. and Barth, K. and Belov, A. and Betz, M. and
                       Bräuninger, H. and Brax, P. and Breijnholt, N. and Brun,
                       P. and Cantatore, G. and Carmona, J.M. and Carosi, G.P. and
                       Caspers, F. and Caspi, S. and Cetin, S.A. and Chelouche, D.
                       and Christensen, F.E. and Collar, J.I. and Dael, A. and
                       Davenport, M. and Derbin, A.V. and Desch, K. and Diago, A.
                       and Döbrich, B. and Dratchnev, I. and Dudarev, A. and
                       Eleftheriadis, C. and Fanourakis, G. and Ferrer-Ribas, E.
                       and Friedrich, P. and Galán, J. and García, J.A. and
                       Gardikiotis, A. and Garza, J.G. and Gazis, E.N. and
                       Georgiopoulou, E. and Geralis, T. and Gimeno, B. and
                       Giomataris, I. and Gninenko, S. and Gómez, H. and
                       González-Díaz, D. and Gruber, E. and Guendelman, E. and
                       Guthörl, T. and Hailey, C.J. and Hartmann, R. and Hauf, S.
                       and Haug, F. and Hasinoff, M.D. and Hiramatsu, T. and
                       Hoffmann, D.H.H. and Horns, D. and Iguaz, F.J. and
                       Irastorza, I.G. and Isern, J. and Imai, K. and Jacoby, J.
                       and Jaeckel, J. and Jakobsen, A.C. and Jakovcic, K. and
                       Kaminski, J. and Kawasaki, M. and Karuza, M. and
                       Königsmann, K. and Kotthaus, R. and Krcmar, M. and
                       Kousouris, K. and Krieger, C. and Kuster, M. and Lakic, B.
                       and Laurent, J.M. and Limousin, O. and Lindner, A. and
                       Liolios, A. and Ljubicic, A. and Luzón, G. and Matsuki, S.
                       and Muratova, V.N. and Neff, S. and Niinikoski, T. and
                       Nones, C. and Ortega, I. and Papaevangelou, T. and
                       Pivovaroff, M.J. and Raffelt, G. and Redondo, J. and Riege,
                       H. and Ringwald, A. and Rodríguez, A. and Rosu, M. and
                       Russenschuck, S. and Ruz, J. and Saikawa, K. and Savvidis,
                       I. and Sekiguchi, T. and Semertzidis, Y.K. and Shilon, I.
                       and Sikivie, P. and Silva, H. and Solanki, S.K. and
                       Stewart, L. and ten Kate, H.H.J. and Tomas, A. and
                       Troitsky, S. and Vafeiadis, T. and van Bibber, K.",
      title         = "{An update on the Axion Helioscopes front: Current
                       activities at CAST and the IAXO project}",
      year          = "2016",