By Sean Carroll
By Eryk Infeld (Soltan Institute for Nuclear Studies, Warsaw), George Rowlands (University of Warwick)
By M. Remoissenet
By The MEW Group
By George Mase
By J.W. Leech
By Alan Hinchliffe (Reader in Chemistry, UMIST (University of Manchester Institute of Science and Technology), Manchester M60 1QD, United Kingdom)
By J. F. Douglas, John Gasiorek, John Swaffield, Lynne Jack
By Keith Pledger, Hamilton, Alwyn
By Smith, Peter, Begg, David