Gumm, Heinz-peter, Sommer, Manfred (1) Spiliotis, Thodoris (1) Roach, Mary (1) R (univ Michigan, Usa) Akhoury, B Q P J (univ Of Utrecht, The Netherlands) De Wit, Hugo G (desy, Germany) Veltman, Peter (state Univ Of New York At Stony Brook, Usa) Van Nieuwenhuizen (1) Leyts, Maarten (1)