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We discuss the perturbative approach a` la Dyson to a quantum field theorywith nonlocal self-interaction :phi*...*phi:, according to Doplicher,Fredenhagen and Roberts (DFR). In particular, we show that the Wick reductionof non locally time--ordered products of Wick monomials can be performed asusual, and we discuss a very simple Dyson diagram.Comment: 15 pages, pdf has active hyperlinks. To appear in the proceedings of  the conference on "Rigorous quantum Field Theory", held at Saclay on July  19-21, 2004, on the occasion of Jacques Bros' 70th birthda

DFR Perturbative Quantum Field Theory on Quantum Space Time, and Wick Reduction