1. Quadratische Formen über Funktionenkörpern;Amer,1976
2. Remarques sur les couples de formes quadratiques;Brumer;C. R. Acad. Sci. Paris, Ser. A-B,1978
3. D.B. Leep, The Amer-Brumer theorem over arbitrary fields, preprint, 2007, pp. 1–7.
4. Classification of pairs of symmetric and alternating bilinear forms;Leep;Expo. Math.,1999
5. Introduction to Quadratic Forms over Fields;Lam,2005