TY - JOUR T1 - Congruences of modular forms and Selmer groups JO - Mathematical Research Letters PY - 2001/01/01 AU - Dummigan N ED - DO - DOI: 10.4310/MRL.2001.v8.n4.a8 VL - 8 IS - 4 SP - 479 EP - 494 Y2 - 2024/12/22 ER -