Microscopic model for multiple flux transitions in mesoscopic superconducting loops D. Y. Vodolazov, F. M. Peeters, T. T. Hongisto and K. Yu. Arutyunov Europhys. Lett., 75 2 (2006) 315-320 Published online: 28 June 2006 DOI: 10.1209/epl/i2006-10112-y