John Grant, Jack Minker. Numerical Dependencies. In XP2 Workshop on Relational Database Theory, June 22-24 1981, The Pennsylvania State University, PA, USA. 1981. [doi]
@inproceedings{GrantM81, title = {Numerical Dependencies}, author = {John Grant and Jack Minker}, year = {1981}, researchr = {https://researchr.org/publication/GrantM81}, cites = {0}, citedby = {0}, booktitle = {XP2 Workshop on Relational Database Theory, June 22-24 1981, The Pennsylvania State University, PA, USA}, }