Hans-Joachim Klein. On the Use of Marked Nulls for the Evaluation of Queries Against Incomplete Relational Databases. In FMLDO. pages 81-98, 1998.
@inproceedings{Klein98:1, title = {On the Use of Marked Nulls for the Evaluation of Queries Against Incomplete Relational Databases}, author = {Hans-Joachim Klein}, year = {1998}, tags = {relational database}, researchr = {https://researchr.org/publication/Klein98%3A1}, cites = {0}, citedby = {0}, pages = {81-98}, booktitle = {FMLDO}, }