"Giant" Aharonov-Bohm effect in mesoscopic silver rings with bismuth electrodesV. T. Petrashov, V. N. Antonov, R. Sh. Shaikhaidarov, S. V. Maksimov, P. Meeson, R. Souhami and M. SpringfordEurophys. Lett., 34 8 (1996) 593-598DOI: https://doi.org/10.1209/epl/i1996-00500-3