By N/A
By Barale, Vittorio, Schlittenhardt, Peter M.
By Brady, Barry H.G., Brown, E. T.
By Capinera, John L.
By Sokhi, Ranjeet S., Bartzis, John G.
By Karl Puttlitz / Paul totta
By Edwards, Viv, Corson, David
By Wodak, Ruth, Corson, David
By Cummins, Jim, Corson, David
By Hanson, N.R., Humphreys Jr., Willard C.
By Vieux, Baxter E.
By Wagner, Gunther A., Haute, Peter van den, van den Haute, Peter
By Alexander Peters, Gabriel Wittum, Bruno Herrling, Udo Meissner, Carlos A. Brebbia, William G. Gray, George F. Pinder
By Becker, Richard A., etc.
By Gould, G. W.
By Ralph Lewin
By Barnard, C. J.
By Le Docte, Edgard
By Benton, Michael
By Tolmazin, D.
By H. Watson
By G. Lisinska, W. Leszczynski
By W. Totsch, H. Gaensslen
By K. P. Huber, Gerhard Herzberg
By J.S. Gale
By Lars Harms-Ringdahl
By A. N. Nicholson, J. Marks
By L. Cliffe, J.S. Coleman, M.R. Doornbos
By Peter O'Neill
By Fry, John, etc.