Appel Peter W. U.
Araujo R. A. N.
Argomedo Javier
Arkenberg Keith R.
Arlot Jean-Eudes
Armstrong John C.
Arnold Luc
Arras Phil
Arratia Oscar
Arriagada Pamela
Arridge Chris
Arridge Christopher S.
Arvidson Ray E.
Asamura Kazushi
Asay-Davis Xylar
Assafin Marcelo
Athanassiadou Themis
Atreya Sushil
Augusteijn Th.
Aumatell Guillem