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2. “Manifesto for Improved Foundations of Relational Model.”;Litwin;EICN-2019. Procedia Comp. Sc.,2019
3. Supplier-Part Databases with Stored and Inherited Relations Simulated on MS Access;Litwin;Lamsade Tech. E-Note,2016
4. Litwin, W. “Stored and Inherited Relations with Foreign Keys.” Lamsade e-report. June, 2020, 14, pdf.
5. Litwin, W. Ketabchi, M., Risch, T., 1992. “Relations with Inherited Attributes.” HPL. Palo Alto. Tech. Rep. HPL-DTD-92-45, 30.