hosted by the Centre de Données astronomiques de Strasbourg with support from le Centre National d'Etudes Spatiales

The NASA Astrophysics Data System provides different interfaces allowing users to browse its databases.

• Journal/Volume/Page Service: find a record in ADS cited by journal, volume and page.
  
  
• Article Service: view and print scanned pages of publications digitized by ADS.
  
  
• Scanned Historical Literature Service: view and print scanned pages of Historical Observatory Publications digitized by ADS.
  
  
• Scanned Books Service: view and print selected books digitized by the ADS.