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| Ramirez, Oscar M. (1) | Ramiro, Antonio (1) | Raquel, Medeiros (1) |
| Rasse, D. (1) | Ravikovitch, P. I. (1) | Ravikovitch, Peter I. (1) |
| Read, Peter (1) | Recha, John W. (1) | Reed, Debbie (2) |
| Reicosky, D. C. (2) | Reid, P. H. (1) | Rials, Timothy (1) |
| Ribeiro Carrott, M. M. (1) | Richard, J. R. (1) | Riha, Susan (1) |
| Riha, Susan J. (1) | Robinson, Michael J. (1) | Rocha, Jose Dilcio (1) |
| Rockne, K. J. (1) | Rockstraw, D. A. (1) | Rodriguez, Richard I. (1) |
| Rogaume, C. (1) | Rogaume, Y. (1) | Rondon, Marco (3) |
| Rostad, Colleen E. (1) | Rowley, D. (1) | Rubiales, Jesus (1) |
| Rudkovskii, A. V. (1) | Ruehr, Thomas A. (1) | Rumpel, C. (1) |
| Russell, D. (1) | | |
