1. Gradl, H., Meyberg, K., Walcher, S.:R-algebras with an associative trace form. Nova J. Algebra and Geometry
2. Jacobson, N.: Composition algebras and their automorphisms. Rend. Circ. Mat. Palermo (2)7, 55–80 (1958)
3. Röhrl, H., Walcher, S.: Some classes of algebras and their derivation algebras. Algebras, Groups and Geometries4, 475–496 (1987)
4. Röhrl, H., Walcher, S.: Algebras of complexity one. Algebras, Groups and Geometries5, 61–107 (1988)
5. Springer, T.A.: On a class of Jordan algebras. Nederl. Akad. Wetensch. Proc. Ser. A62, 254–264 (1959)