-forms and their properties.
Tensor products of positive definite quadratic forms. II.
The classification of Lie algebras with invariant cones.
The generalized Radon-Hurwitz numbers
The method of moving frames applied to a space of bilinear forms
The Milnor ring of a local ring
Theorie der biquadratischen Formeln.
Theorie der linearen Formen mit ganzen Coefficienten.
Two Non-Negative Quadratic Forms.