In-Joong Kim, Kyu-Young Whang, Hyuk-Yoon Kwon. Maximal object+: An acyclic semantic structure on the universal relation model. Data \& Knowledge Engineering, 111:39-57, 2017. [doi]
@article{KimWK17-0, title = {Maximal object+: An acyclic semantic structure on the universal relation model}, author = {In-Joong Kim and Kyu-Young Whang and Hyuk-Yoon Kwon}, year = {2017}, doi = {10.1016/j.datak.2017.06.004}, url = {https://doi.org/10.1016/j.datak.2017.06.004}, researchr = {https://researchr.org/publication/KimWK17-0}, cites = {0}, citedby = {0}, journal = {Data \& Knowledge Engineering}, volume = {111}, pages = {39-57}, }