G Alexander (Tel Aviv U.), S Dagan (Tel Aviv U.), Y Gnat (Tel Aviv U.), J Grunhaus (Tel Aviv U.), MJ Corden (Birmingham U.), JD Dowell (Birmingham U.), J Garvey (Birmingham U.), M Jobes (Birmingham U.), IR Kenyon (Birmingham U.), J Mawson (Birmingham U.), T Mcmahon (Birmingham U.), IF Corbett (SERC Rutherford Lab.), RJ Esterling (SERC Rutherford Lab.), NH Lipman (SERC Rutherford Lab.), P J Litchfield (SERC Rutherford Lab.), KCTO Sumorok (SERC Rutherford Lab.), EH Bellamy (Queen Mary, U. of London), MG Green (Queen Mary, U. of London), N Harnew (Queen Mary, U. of London), JB Lister (Queen Mary, U. of London), JR Lister (Queen Mary, U. of London), PV March (Queen Mary, U. of London), AW Robertson (Queen Mary, U. of London), BJ Stacey (Queen Mary, U. of London), JA Strong (Queen Mary, U. of London), DH Thomas (Queen Mary, U. of London)