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A 66-page PDF description of the professional system that grew out of the Italian system created for the Dutch junior team but is now distinctly Dutch, exciting to play, used by pairs such as Brink-Drijver and de Leon-Sprinkhuizen.
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A 66-page PDF with a bidding-tree of the whole system as played by Eric Greco and Geoff Hampson during most their career. The system is a professional implementation of Standard Modern Precision (SMP), with the main change that 1C-1H denies 5+S and 1C-1S is 5+S 8+ HCP, the most frequent variation from classic SMP.