Kurtz, M.J.; Eichhorn G.; Accomazzi A.; Grant C.S.; Demleitner M. «Worldwide Use and Impact of the NASA Astrophysics Data System Digital Library». Journal of the American Society for Information Science and Technology, 56, 1, 2005, pàg. 36–45. arXiv: 0909.4786. Bibcode: 2005JASIS..56...36K. DOI: 10.1002/asi.20095. (Preprint)
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Kurtz, M.J.; Eichhorn G.; Accomazzi A.; Grant C.S.; Demleitner M. «Worldwide Use and Impact of the NASA Astrophysics Data System Digital Library». Journal of the American Society for Information Science and Technology, 56, 1, 2005, pàg. 36–45. arXiv: 0909.4786. Bibcode: 2005JASIS..56...36K. DOI: 10.1002/asi.20095. (Preprint)
Kurtz, M.J.; Eichhorn G.; Accomazzi A.; Grant C.S.; Demleitner M. «Worldwide Use and Impact of the NASA Astrophysics Data System Digital Library». Journal of the American Society for Information Science and Technology, 56, 1, 2005, pàg. 36–45. arXiv: 0909.4786. Bibcode: 2005JASIS..56...36K. DOI: 10.1002/asi.20095. (Preprint)
Kurtz, M.J.; Eichhorn G.; Accomazzi A.; Grant C.S.; Demleitner M. «Worldwide Use and Impact of the NASA Astrophysics Data System Digital Library». Journal of the American Society for Information Science and Technology, 56, 1, 2005, pàg. 36–45. arXiv: 0909.4786. Bibcode: 2005JASIS..56...36K. DOI: 10.1002/asi.20095. (Preprint)