Mark A. Roth, Henry F. Korth, Abraham Silberschatz. Addendum to Null Values in Nested Relational Databases. Acta Informatica, 28(6):607-610, 1991.
@article{RothKS91, title = {Addendum to Null Values in Nested Relational Databases}, author = {Mark A. Roth and Henry F. Korth and Abraham Silberschatz}, year = {1991}, tags = {relational database}, researchr = {https://researchr.org/publication/RothKS91}, cites = {0}, citedby = {0}, journal = {Acta Informatica}, volume = {28}, number = {6}, pages = {607-610}, }