1. . . On Cauchy estimates and growth orders of entire solutions of iterated Dirac and generalized Cauchy–Riemann equations, submitted.
2. Higher Order Partial Differential Equations in Clifford Analysis. Birkhäuser: Basel, 2003.
3. . Quaternionic and Clifford Calculus for Physicists and Engineers. Wiley: Chichester, New York, 1997.
4. Research and;Kravchenko,2003