Marco Console, Paolo Guagliardo, Leonid Libkin. Fragments of bag relational algebra: Expressiveness and certain answers. Inf. Syst., 105:101604, 2022. [doi]
@article{ConsoleGL22-0,
title = {Fragments of bag relational algebra: Expressiveness and certain answers},
author = {Marco Console and Paolo Guagliardo and Leonid Libkin},
year = {2022},
doi = {10.1016/j.is.2020.101604},
url = {https://doi.org/10.1016/j.is.2020.101604},
researchr = {https://researchr.org/publication/ConsoleGL22-0},
cites = {0},
citedby = {0},
journal = {Inf. Syst.},
volume = {105},
pages = {101604},
}