By Karger-Kocsis, J.
By Al-Malaika, S.
By Christofides, Panagiotis D.
By Bouwman-Boer, Yvonne, Fenton-May, V'Iain, Le Brun, Paul
By Blackley, D.C.
By Flores, Paulo, Lankarani, Hamid M.
By Theofilis, Vassilis, Soria, Julio
By Mauri, Roberto
By Starr, Trevor
By Hélix-Nielsen, Claus
By Roco, Mihail C., Bainbridge, William Sims
By Kaye, B.H.
By François Delamare, Bernard Guineau
By Ibbotson, Lemuel
By Raven, Ann
By Coombs, Richard, etc.
By Rigden, John
By Brown, T. A.
By Porter, George
By Grieve, Andrew
By Meibohm, Bernd
By Dowsett, David J.
By Melinda Coss
By Goujon, Philippe
By Kotrba, Pavel, Mackova, Martina, Macek, Tomás
By Fisher, Barry
By Okafor, Nduka
By Ho, Mae-Wan