TY - JOUR AU - Kevin Buzzard AU - Richard Taylor TI - Companion forms and weight one forms JO - Annals of mathematics PY - 1999 VL - 149 IS - 3 UR - http://geodesic.mathdoc.fr/articles/10.2307/121076/ DO - 10.2307/121076 ID - 10_2307_121076 ER -