By Gomes da Silva, Roberto, Campos Maia, Alex Sandro
By Hänninen, Heikki
By Mascarenhas, Miguel, Marques, Ana Teresa, Ramalho, Ricardo, Santos, Dulce, Bernardino, Joana, Fonseca, Carlos
By Zinck, Joseph Alfred, Metternicht, Graciela, Bocco, Gerardo, Del Valle, Héctor Francisco
By Shannon, P.M., Naylor, D.
By Sarkar, Sahotra, Minteer, Ben A.
By Fleury, Spencer
By Showalter, Pamela S., Lu, Yongmei
By Hoalst-Pullen, Nancy, Patterson, Mark W.
By Scoon, Roger N.
By Khattak, Ahmad Saeed
By Maciocco, Giovanni, Serreli, Silvia
By van Leeuwen, C.J., Hermens, J.L.M.
By Edwards, R., Atkinson, K.
By Zucker, Martin
By Robinson, Peter
By Gibbons, Bob, Liz
By Atkins, Stephen, Fowler, Rosamund
By Speer, Roy
By Fleming, Ciji A.
By Fleming, C. A., Ed.
By Prince of Wales, H.R.H., Juniper, Tony, Skelly, Ian
By McIntosh, Alastair
By Percival, Rob
By Schofield, Lee
By Hunnes, Dana Ellis
By Farfán González, Hermes, Corvea Porras, Jose Luis, de Bustamente Gutiérrez, Irene, Lamoreaux, James W.
By Kebede, Seifu
By Renzetti, Steven, DuPont, Diane P.
By Dent, David, Dmytruk, Yuriy