Smithsonian/NASA astrophisics data system

URL de fascículos

http://adswww.harvard.edu/

ODiSEA is made available under the Open Database License (ODC-ODbL Attribution Share-Alike for data/databases): http://opendatacommons.org/licenses/odbl/1.0/.

Any rights in individual contents of the database are licensed under the Database Contents License: http://opendatacommons.org/licenses/dbcl/1.0/