Database resources of the National Center for Biotechnology Information. - David L. Wheeler; Colombe Chappey; Alex E. Lash; Detlef D. Leipe; Thomas L. Madden; Gregory D. Schuler; Tatiana A. Tatusova; Barbara A. Rapp (Nucleic Acids Res., 2000)

Database resources of the National Center for Biotechnology Information. - David L. Wheeler; Deanna M. Church; Alex E. Lash; Detlef D. Leipe; Thomas L. Madden; Joan U. Pontius; Gregory D. Schuler; Lynn M. Schriml; Tatiana A. Tatusova; Lukas Wagner 002; Barbara A. Rapp (Nucleic Acids Res., 2001)

Database resources of the National Center for Biotechnology Information: 2002 update. - David L. Wheeler; Deanna M. Church; Alex E. Lash; Detlef D. Leipe; Thomas L. Madden; Joan U. Pontius; Gregory D. Schuler; Lynn M. Schriml; Tatiana A. Tatusova; Lukas Wagner 002; Barbara A. Rapp (Nucleic Acids Res., 2002)