1. Clifford analysis;Brackx,1982
2. Clifford Algebras and Spinor Valued Functions: A Function Theory for Dirac Operator;Delanghe,1992
3. An Introduction to Harmonic Analysis;Katznelson,1976
4. Clifford algebras, Fourier transforms, and singular convolution operators on Lipschitz surfaces;Li;Rev. Mat. Iberoamericana,1994
5. Clifford Wavelets, Singular Integrals, and Hardy Spaces;Mitrea,1994