Cyclic hydrocarbons: nanoscopic (π)-SQUIDs? M. Himmerich, P. G.J. van Dongen and R. M. Noack Eur. Phys. J. B, 51 1 (2006) 5-15 Published online: 31 May 2006 DOI: 10.1140/epjb/e2006-00184-y
