Molecular and cluster structures in 18O W. von Oertzen, T. Dorsch, H. G. Bohlen, R. Krücken, T. Faestermann, R. Hertenberger, Tz. Kokalova, M. Mahgoub, M. Milin, C. Wheldon and H. -F. Wirth Eur. Phys. J. A, 43 1 (2010) 17-33 Published online: 04 December 2009 DOI: 10.1140/epja/i2009-10894-2