Review of even element super-heavy nuclei and search for element 120 S. Hofmann, S. Heinz, R. Mann, J. Maurer, G. Münzenberg, S. Antalic, W. Barth, H. G. Burkhard, L. Dahl, K. Eberhardt et al. (27 more) Eur. Phys. J. A, 52 6 (2016) 180 Published online: 28 June 2016 DOI: 10.1140/epja/i2016-16180-4