1. Abiteboul, S., Hull, R., Vianu, V.: Foundations of Databases. Addison Wesley Publishing Co., Reading (1995)
2. Bairoch, A., Apweiler, R.: The SWISS-PROT protein sequence database and its supplement TrEMBL. Nucleic Acids Research 28, 45–48 (2000)
3. Benson, D., Karsch-Mizrachi, I., Lipman, D., Ostell, J., Rapp, B., Wheeler, D.: GenBank. Nucleic Acids Research 28(1), 15–18 (2000)
4. Bernstein, P., Bergstraesser, T.: Meta-Data Support for Data Transformations Using Microsoft Repository. IEEE Data Engineering Bulletin 22(1), 9–14 (1999)
5. biodas.org, http://biodas.org