TY  - JOUR
AU  - Heng Xie
TI  - An application of Hermitian K-theory: sums-of-squares formulas
JO  - Documenta mathematica
PY  - 2014
SP  - 195
EP  - 208
VL  - 19
UR  - http://geodesic.mathdoc.fr/articles/10.4171/dm/444/
DO  - 10.4171/dm/444
ID  - 10_4171_dm_444
ER  -