TY  - JOUR
AU  - Chi Zhang
AU  - Hua-Lin Huang
TI  - A Generalization of the Doubling Construction for Sums of Squares Identities
JO  - Symmetry, integrability and geometry: methods and applications
PY  - 2017
VL  - 13
UR  - http://geodesic.mathdoc.fr/item/SIGMA_2017_13_a63/
LA  - en
ID  - SIGMA_2017_13_a63
ER  -