Soft Gamma Repeaters and Anomalous X-ray Pulsars: Magnetar Candidates
  This article is a review of Soft Gamma Repeaters and Anomalous X-ray Pulsars. It contains a brief historical record of the emergence of these classes of neutron stars, a thorough overview of the observational data, a succinct summary of the magnetar model, and suggested directions for future research in this field. 
P.M. Woods (USRA/NSSTC), C. Thompson (CITA)