Classification Theorems for Quadratic Forms over Fields Richard Elman; T.Y. Lam — 1974 Commentarii mathematici Helvetici
Quadratic Forms and the u-Invariant. I. Richard Elman; Tsit-Yuen Lam — 1973 Mathematische Zeitschrift
Fields of Cohomological 2-Dimension Three. Richard Elman; Jón Kr. Arason; Bill Jacob — 1986 Mathematische Annalen
Graded Witt Rings of Elementary Type. Richard Elman; Jón Kr. Arason; Bill Jacob — 1985 Mathematische Annalen
On Some Hasse Principles over Formally Real Fields. Alexander Prestel; Richard Elman; Tsit-Yuen Lam — 1973 Mathematische Zeitschrift