By Varentsov, I.M.
By Bennett, Richard, Hulbert, Matthew
By Parker, Douglas D., Tsur, Yacov
By Van Der Linden, W.J.M., Cloetingh, S.A.P.L., Kaasschieter, J.P.H., Vandenberghe, J., Van De Graaff, W.J.E., van der Gun, J.A.M.
By Engelen, G.B., Kloosterman, F.H.
By Rossi, Giuseppe, Vega, Teodoro, Bonaccorso, Brunella
By Etkin, David, Haque, C.E., Brooks, Gregory R.
By Hipel, Keith W.
By El-Sabh, Mohammed I., Venkatesh, Srinivasan, Lomnitz, Cinna, Murty, Tad S.
By Nemec, J.
By Donnellan, Craig
By Laudon, Robert C.
By Vaillant, John
By Holgate, Robin
By Pretty OBE, Jules
By Lang, Laura
By Shackley, Myra L.
By Young, Geoffrey, Mitchell, Sue
By The Worldwatch Institute
By Wharton, Geraldene
By Pearce, David W., Rose, J.
By National Museums of Scotland, McKirdy, Alan, Moira, National Museums of Scotland and Scottish National Heritage, Ellery, Craig
By Bob Freitag, Susan Bolton, Frank Westerlund
By Prior, Colin
By Roulac, John
By Searle-Barnes, Bonita, Smithson, Colin
By Dwyer, Hodge
By Turner, Tom