@article{GDZPPN002208563,
title = {Polynomial mappings form products of algebraic sets into spheres.},
journal = {Journal f\"ur die reine und angewandte Mathematik},
volume = {416},
year = {1991},
pages = {135-140},
zbl = {0721.14029},
url = {http://dml.mathdoc.fr/item/GDZPPN002208563}
}
Bochnak, J., Kucharz, W. Polynomial mappings form products of algebraic sets into spheres.. Journal für die reine und angewandte Mathematik, Tome 416 (1991) pp. 135-140. http://gdmltest.u-ga.fr/item/GDZPPN002208563/