@article{Olteanu_2015,
    doi = {10.1145/2656335},
    url = {https://doi.org/10.1145%2F2656335},
    year = {2015},
    month = {mar},
    publisher = {Association for Computing Machinery ({ACM})},
    volume = {40},
    number = {1},
    pages = {1--44},
    author = {Dan Olteanu and Jakub Z{\'{a}}vodn{\'{y}}},
    title = {Size Bounds for Factorised Representations of Query Results},
    journal = {{ACM} Transactions on Database Systems}
}

@article{Olteanu_2015, doi = {10.1145/2656335}, url = {https://doi.org/10.1145%2F2656335}, year = {2015}, month = {mar}, publisher = {Association for Computing Machinery ({ACM})}, volume = {40}, number = {1}, pages = {1--44}, author = {Dan Olteanu and Jakub Z{\'{a}}vodn{\'{y}}}, title = {Size Bounds for Factorised Representations of Query Results}, journal = {{ACM} Transactions on Database Systems} }