The NASA Astrophysics Data System: ArchitectureAlberto Accomazzi, Guenther Eichhorn, Michael J. Kurtz, Carolyn S. Grant and Stephen S. MurrayAstron. Astrophys. Suppl. Ser., 143 1 (2000) 85-109DOI: https://doi.org/10.1051/aas:2000172