1. Brackx F., Delanghe R. and Sommen F. (1982) Clifford Analysis, Research Notes in Math., 76 Pitman, London.
2. Brackx F., Constales D., Serras H. and Ronveaux A. (1989) ‘On the harmonic and monogenic decomposition of polynomials’, J. Symb. Comp., pp. 297-304.
3. Cnops J., ‘Explicit bases for modules of spherical monogenics and monogenics in the unit ball’, to appear.
4. Delanghe R. and Brackx F. (1980) ‘Duality in hypercomplex function theory’, J. Funct. Anal. 37, pp. 164–181.
5. Delanghe R. and Sommen F. (1986)’ spingroups and spherical monogenics’, Proc. Workshop Clifford Algebras Canterbury, NATO ASI Series C, 183, pp. 115-132.