1. D. S. Arnon, T. W. Sederberg, 1984. Implicit Equation for a Parametric Surface by Gröbner Bases. In: Proceedings of the 1984 MACSYMA User's Conference (V. E. Golden ed.), General Electric, Schenectady, New York, 431–436.
2. A. H. Barr, 1981. Superquadrics and Angle-Preserving Transformations. IEEE Computer Graphics and Applications, 1/1, 11–23.
3. B. Buchberger, 1965. An Algorithm for Finding a Basis for the Residue Class Ring of a Zero-Dimensional Polynomial Ideal (German). Ph. D. Thesis, Univ. of Innsbruck (Austria), Dept. of Mathematics.
4. B. Buchberger, 1970. An Algorithmic Criterion for the Solvability of Algebraic Systems of Equations (German). Aequationes Mathematicae 4/3, 374–383.
5. B. Buchberger, G. E. Collins, R. Loos, 1982. “Computer Algebra: Symbolic and Algebraic Computation”. Springer-Verlag, Vienna — New York.