An Extended Entity-Relationship Model and Its Use on a Defense Project.

@inproceedings{DBLP:conf/er/Webre81,
  author    = {Neil W. Webre},
  editor    = {Peter P. Chen},
  title     = {An Extended Entity-Relationship Model and Its Use on a Defense
               Project},
  booktitle = {Entity-Relationship Approach to Information Modeling and Analysis,
               Proceedings of the Second International Conference on the Entity-Relationship
               Approach (ER'81), Washington, DC, USA, October 12-14, 1981},
  publisher = {North-Holland},
  year      = {1981},
  isbn      = {0-444-86747-3},
  pages     = {173-193},
  ee        = {db/conf/er/Webre81.html},
  crossref  = {DBLP:conf/er/81},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}

ACM SIGMOD Anthology

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C. J. Date: An Introduction to Database Systems, 2nd Edition. Addison-Wesley 1977
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Clesio Saraiva dos Santos, Erich J. Neuhold, Antonio L. Furtado: A Data Type Approach to the Entity-Relationship Approach. ER 1979: 103-119 BibTeX

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Peter Scheuermann, Gerd Schiffner, H. Weber: Abstraction Capabilities and Invariant Properties Modelling within the Entity-Relationship Approach. ER 1979: 121-140 BibTeX

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John Miles Smith, Diane C. P. Smith: Database Abstractions: Aggregation. Commun. ACM 20(6): 405-413(1977) BibTeX

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John Miles Smith, Diane C. P. Smith: Database Abstractions: Aggregation and Generalization. ACM Trans. Database Syst. 2(2): 105-133(1977) BibTeX

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Stanley Y. W. Su, Der Her Lo: A Semantic Association Model for Conceptual Design. ER 1979: 169-192 BibTeX

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Referenced by

1. Stephen Ferg: Cardinality Constraints in Entity-Relationship Modeling. ER 1991: 1-30
2. Toby J. Teorey, Dongqing Yang, James P. Fry: A Logical Design Methodology for Relational Databases Using the Extended Entity-Relationship Model. ACM Comput. Surv. 18(2): 197-222(1986)
3. Peter P. Chen: ER - A Historical Perspective and Future Directions. ER 1983: 71-77