- Rabatel Antoine
- Radhakrishnan Aparna
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- Rajot Jean-Louis
- Rakotoarimalala C. L.
- Ralph F. Martin
- Ramos A. M.
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- Randel W.
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- Ratna Satyaban B.
- Ravichandran M.
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- Raynolds M.
- Razafindrakoto Mireille
- Recapet Charlotte
- Récapet Charlotte
- Reid P.
- Reimer C.
- Remya P.
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- Ren Hong-Li
- Renwick James
- Reul Nicolas
- Revadekar J. V.
- Reverdin Gilles
- Reynolds David
- Ribes Aurélien
- Richardson A. D.
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- Richter I.
- Richter-Menge J.
- Ricker R.
- Ridley Jeff
- Ridoux Vincent
- Rieger Landon
- Riffault Véronique
- Ringer Mark A
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- Rio Catherine
- Riotte Jean
- Ripaldi A.
- Risi Camille
- Rivas-Torres Gonzalo
- Rivera Irma Ayes
- Rivière Gwendal
- Robert Loïc
- Roberts Christopher David
- Roberts Christopher D.
- Roberts Christopher
- Robert Vincent
- Robin C.
- Robin Nelly
- Robinson C.
- Robinson D. A.
- Robinson Walter
- Robock Alan
- Robson Jon
- Robson Jon I.
- Rochetin Nicolas
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- Rodgers K.
- Rodier Martine
- Rodolfo-Metalpa Riccardo
- Rodrigues Regina
- Rodriguez-Fernandez N.J.
- Rodríguez-Fonseca Belén
- Rodriguez-Suquet R.
- Roehrig Romain
- Romanovsky V. E.
- Rome Sandra
- Ronchail Josyane
- Roquet Fabien
- Rosell A.Carnero
- Rosenbloom Nan
- Rosenlof K. H.
- Rosenthal H. S.
- Rosner B.
- Rossi Vincent
- Roth C.
- Rouan D.
- Roubaud François
- Roucou Pascal
- Rouffi F.
- Rouge B.
- Roughan Moninya
- Rousset Guillaume
- Roussos Sevastianos
- Rowe Penny
- Roxy Mathew Koll
- Roy T.
- Rozanov A.
- Rozanov Eugene
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- Rubinetti Sara
- Rubino Angelo
- Rudnick Daniel
- Ruf Thierry
- Ruggieri Paolo
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- Rusak J. A.
- Rustemeier E.
- Rutishauser T.
- Rykaczewski Ryan