1. Theory and Applications of Distance Geometry;Blumenthal,1970
2. Bimatroids and invariants;Kung;Adv. in Math.,1978
3. New foundation of Euclidean geometry;Menger;Amer. J. Math.,1931
4. Matroids and Linking Systems;Schrijver,1978
5. Metric Affine Geometry;Snapper,1971