Takeda87'

@inproceedings{DBLP:conf/nf2/Takeda87,
  author    = {Koichi Takeda},
  title     = {On the Uniqueness of Nested Relations},
  booktitle = {NF$^2$},
  year      = {1987},
  pages     = {139-150},
  ee        = {http://dx.doi.org/10.1007/3-540-51171-7_24},
  crossref  = {DBLP:conf/nf2/87},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}

@proceedings{DBLP:conf/nf2/87,
  editor    = {Serge Abiteboul and
               Patrick C. Fischer and
               Hans-J{\"o}rg Schek},
  title     = {Nested Relations and Complex Objects, Papers from the Workshop
               "Theory and Applications of Nested Relations and Complex
               Objects", Darmstadt, Germany, April 6-8, 1987},
  booktitle = {NF$^2$},
  publisher = {Springer},
  series    = {Lecture Notes in Computer Science},
  volume    = {361},
  year      = {1989},
  isbn      = {3-540-51171-7},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}