On the solution of some inverse problems in porous media flow. Constales, D.; Kačur, J. — 2001 Acta Mathematica Universitatis Comenianae. New Series
On the convergence properties of basic series representing Clifford valued functions. Abul-Ez, M. A.; Constales, D. — 2003 International Journal of Mathematics and Mathematical Sciences
Linear substitution for basic sets of polynomials in Clifford analysis Abul-Ez, M.A.; Constales, D. — 1991 Portugaliae mathematica