@article{01347799,
title = {Companion forms and weight one forms.},
journal = {Annals of Mathematics. Second Series},
volume = {150},
year = {1999},
pages = {905-919},
doi = {10.2307/121076},
zbl = {0965.11019},
language = {en},
url = {http://dml.mathdoc.fr/item/01347799}
}
Buzzard, Kevin; Taylor, Richard. Companion forms and weight one forms.. Annals of Mathematics. Second Series, Tome 150 (1999) pp. 905-919. doi : 10.2307/121076. http://gdmltest.u-ga.fr/item/01347799/