@article{AM_1999_149_3_a5,
     author = {Kevin Buzzard and Richard Taylor},
     title = {Companion forms and weight one forms},
     journal = {Annals of mathematics},
     publisher = {mathdoc},
     volume = {149},
     number = {3},
     year = {1999},
     url = {http://geodesic.mathdoc.fr/item/AM_1999_149_3_a5/}
}