Yazar: Laing, Gavin D., Renjifo, J.M., Ruiz, F., Harrison, Robert A., Nasidi, Abdulsalami, Gutiérrez, José María, Rowley, Paul D., Warrell, David A., Theakston, R. David G.

Kurum: Universidad de Costa Rica

Repositorio: Kérwá

Yazar: Williams, David J., Gutiérrez, José María, Calvete Chornet, Juan José, Wüster, Wolfgang, Ratanabanangkoon, Kavi, Paiva, Owen K., Brown, Nicholas I., Casewell, Nicholas R., Harrison, Robert A., Rowley, Paul D., O'Shea, Mark, Jensen, Simon D., Winkel, Kenneth D., Warrell, David A.

Kurum: Universidad de Costa Rica

Repositorio: Kérwá