1. Theory and Applications of Distance Geometry;Blumenthal,1953
2. H.S.M. Coxeter, Introduction to Geometry, second ed., Wiley, New York, 1969, p. 12.
3. Distance Geometry and Molecular Conformation;Crippen,1988
4. Least squares with a quadratic constraint;Gander;Numer. Math.,1981
5. Numerical methods for solving linear least squares problems;Golub;Numer. Math.,1965