Resonant transport and giant persistent currents in double-asymmetric rings Wen-Jeng Hsueh, Ren-Zheng Qiu and Chang-Hung Chen Eur. Phys. J. B, 86 1 (2013) 27 Published online: 28 January 2013 DOI: 10.1140/epjb/e2012-30988-9