1. Abul-Ez, M., Constales, D.: Basic sets of polynomials in Clifford analysis. Complex Variables 14, 177–185 (1990)
2. Abul-Ez, M., Constales, D.: Linear substitution for basic sets of polynomials in Clifford analysis. Portug. Mathe. 48, 143–154 (1991)
3. Abul-Ez, M.: Inverse sets of polynomials in Clifford analysis. Arch. der Math. 58, 561–567 (1992)
4. Abul-Ez, M.: Product simple sets of polynomials in Clifford analysis. Rivista dimatematica della Univ. Parma. 3, 283–293 (1994)
5. Abul-Ez, M.: Hadamard product of bases of polynomials in Clifford analysis. Complex Variables 43, 109–128 (2000)