@article{GDZPPN00219516X,
title = {Hasse principle for the Hurwitz problem.},
journal = {Journal f\"ur die reine und angewandte Mathematik},
volume = {302},
year = {1978},
pages = {179-190},
zbl = {0376.10018},
url = {http://dml.mathdoc.fr/item/GDZPPN00219516X}
}
Shapiro, Daniel B. Hasse principle for the Hurwitz problem.. Journal für die reine und angewandte Mathematik, Tome 302 (1978) pp. 179-190. http://gdmltest.u-ga.fr/item/GDZPPN00219516X/