@article{01678411,
title = {2-torsion of the Brauer group of an elliptic curve: Generators and relations.},
journal = {Documenta Mathematica},
volume = {6},
year = {2001},
pages = {85-120},
zbl = {0996.14009},
language = {en},
url = {http://dml.mathdoc.fr/item/01678411}
}
Chernousov, V.; Guletskiĭ, V. 2-torsion of the Brauer group of an elliptic curve: Generators and relations.. Documenta Mathematica, Tome 6 (2001) pp. 85-120. http://gdmltest.u-ga.fr/item/01678411/