1. “Unconventional vortex states in nanoscale superconductors due to shape-induced resonances in the inhomogeneous Cooper-pair condensate”. Zhang L-F, Covaci L, Milošević MV, Berdiyorov GR, Peeters FM, Physical review letters 109, 107001 (2012).   http://doi.org/10.1103/PhysRevLett.109.107001