1. Arason, J.: A proof of Merkurjev's Theorem. Canadian Mathematical Conference Proceedings.4, 121?130 (1984)
2. Arason, J., Elman, R., Jacob, B.: The graded Witt ring and Galois cohomology I. Canadian Mathematical Society Conference Proceedings.4, 17?50 (1984)
3. Arason, J., Elman, R., Jacob, B.: Graded Witt rings of elementary type. Math. Ann.272, 267?280 (1985)
4. Arason, J., Elman, R., Jacob, B.: Rigid elements, valuations, and realization of Witt rings. J. Algebra.110, 449?467 (1987)
5. Arason, J., Elman, R., Jacob, B.: Fields of cohomological 2-dimensions three. Math Ann.274, 649?657 (1986)