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This may also be a good one:
Van Zuijlen et al. (red.): Brand-stof. Een inventarisatie van de entomofauna van het natuurreservaat 'De Brand' in 1990. Insectenwerkgroep KNNV, Tilburg: 119-128.
It's a report of a large-scale malaise trap project. Many specialists collaborated to get a long list of species from many different families. I'm not sure how many Diptera were identified, but you should check it out.