Doberkat, Ernst-Erich 1948- Generating an algebraic specification from an ER-model Ernst-Erich Doberkat - 21 S. Ill. - SWT-Memo 76 . - 76 . - SWT-Memo 76 . Literaturverz. S. 20 - 21 Nat. Bib. Agency Control No.: 312290317 US-OCoLC