1. The lattice of faces of a finite dimensional cone;Barker;Linear Algebra and Appl.,1973
2. G.P. Barker, Faces and duality in convex cones, submitted for publication.
3. Self-dual cones in Euclidean spaces;Barker;Linear Algebra and Appl.,1976
4. Algebraic Perron-Frobenius Theory;Barker;Linear Algebra and Appl.,1975
5. J. Bellissard and B. Iochum, Homogeneous self dual cones, versus Jordan algebras. The theory revisited, Universität Bielefeld preprint.