1. E. Diamantopoulos and Aristomenis G. Siskakis, Composition operators and the Hilbert matrix, Studia Mathematica, 140 (2) (2000), 191 ? 197.

2. E. Diamantopoulos, Hilbert matrix on Bergman spaces, Illinois Journal of Mathematics, 48 (3) (2004), 1067 ? 1078.

3. E. Diamantopoulos, Operators induced by Hankel matrices on Dirichlet spaces, Analysis, 24 (2004) 345 ? 360.

4. E. Diamantopoulos, Ch. Mouratides and N. Tsirivas, Universal Taylor seres on unbounded open sets, Analysis, 26 (2006) 323 ? 336.

5. E. Diamantopoulos, Ch. Kariofilis and Ch. Mouratides,Universal Laurent series in finitely connected domains, Arch. Math., Volume 91, Number 2 (2008), 145-154.

6. E. Diamantopoulos, Norm estimates for a particular weighted integral operator, Journal of Integral Equations and Applications, 22 (1), 2010, 39 ? 56.

7. Epaminondas Diamantopoulos, On a particular integral operator, arXiv:1204.3081v1.