Philip Sloan (EDT)/ Willy Legrand (EDT)/ Clare Hindley (EDT)
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Philip Sloan/ Willy Legrand/ Clare Hindley
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Sloan, Philip (University of Applied Sciences, Bonn, Germany),Legrand, Willy (University of Applied Sciences, Bonn, Germany),Hindley, Clare (International University of Applied Sciences, Bad Honnef-B
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