@article{GDZPPN002439476,
title = {u-invariants of fields of characteristic 2.},
journal = {Mathematische Zeitschrift},
volume = {207},
year = {1991},
pages = {335-348},
language = {en},
url = {http://dml.mathdoc.fr/item/GDZPPN002439476}
}
Wadsworth, A.R.; Mammone, P.; Moresi, R. u-invariants of fields of characteristic 2.. Mathematische Zeitschrift, Tome 207 (1991) pp. 335-348. http://gdmltest.u-ga.fr/item/GDZPPN002439476/