A family of Minkowski planes over half-ordered fields.
A methodologically pure proof of a convex geometry problem.
A Resolution of the Sylvester-Gallai Problem of J.-P. Serre.
Affine super-Pythagorean geometry.
Angeordnete affine Klingenbergsche Ebenen
Angeordnete affine lokale Ternärringe und angeordnete affine Klingenbergsche Ebenen
Disjoint and complete unions of incidence structures
Some decompositions of general incidence structures with regard to distinguished components (modular or simple) are considered and several structure theorems for them are deduced.
Euclidean superpythagorean geometry.
Fastgeordnete affine lokale Ternärringe und pregeordnete Biternärringe
Fastgeordnete und geordnete affine Klingenbergsche Ebenen
Fastgeordnete und geordnete lokale Ringe und ihre geometrische Anwendung
Konstruktionen einiger endlicher modularer Inzidenzstrukturen
On a Model of Plane Geometry.
On n-ary equivalence relations and their application to geometry [Book]
Orientation of absolute space .
Orientation of Absolute Space Sn
Quasi-additive functions.
Ternary spaces, media, and Chebyshev sets
The elementary geometry of a triangular world with hexagonal circles.
Trivialization of fans in planar ternary rings with rational prime field.