@article{GDZPPN002333171,
title = {Fields of definition for some Hodge cycles.},
journal = {Mathematische Annalen},
volume = {283},
year = {1989},
pages = {289-296},
zbl = {0661.14020},
url = {http://dml.mathdoc.fr/item/GDZPPN002333171}
}
Abdulali, Salman. Fields of definition for some Hodge cycles.. Mathematische Annalen, Tome 283 (1989) pp. 289-296. http://gdmltest.u-ga.fr/item/GDZPPN002333171/