@inproceedings{DBLP:conf/er/SchwarzSTHHBCS99,
  author    = {Kerstin Schwarz and
               Ingo Schmitt and
               Can T{\"u}rker and
               Michael H{\"o}ding and
               Eyk Hildebrandt and
               S{\"o}ren Balko and
               Stefan Conrad and
               Gunter Saake},
  title     = {Design Support for Database Federations},
  booktitle = {ER},
  year      = {1999},
  pages     = {445-459},
  ee        = {http://dx.doi.org/10.1007/3-540-47866-3_30},
  crossref  = {DBLP:conf/er/99},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}

@proceedings{DBLP:conf/er/99,
  editor    = {Jacky Akoka and
               Mokrane Bouzeghoub and
               Isabelle Comyn-Wattiau and
               Elisabeth M{\'e}tais},
  title     = {Conceptual Modeling - ER '99, 18th International Conference
               on Conceptual Modeling, Paris, France, November, 15-18,
               1999, Proceedings},
  booktitle = {ER},
  publisher = {Springer},
  series    = {Lecture Notes in Computer Science},
  volume    = {1728},
  year      = {1999},
  isbn      = {3-540-66686-9},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}