@inproceedings{Schr89a,
   author = {M.~Schrefl},
   booktitle = {{Proceedings of the 7th International Conference on Entity-Relationship Approach (ER `88): A Bridge to the User, Roma, Italy, November 16--18, 1989}},
   editor = {C.~Batini},
   pages = {41--46},
   title = {{Interfaces for Advanced Data Base Systems: On the Impact of Data Models}},
   year = {1989}
}
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