@article{DBLP:journals/tods/TariSS97,
  author    = {Zahir Tari and
               John Stokes and
               Stefano Spaccapietra},
  title     = {Object Normal Forms and Dependency Constraints for Object-Oriented
               Schemata},
  journal   = {ACM Trans. Database Syst.},
  volume    = {22},
  number    = {4},
  year      = {1997},
  pages     = {513-569},
  ee        = {http://doi.acm.org/10.1145/278245.278247},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}