@article{Niepert_2013,
    doi = {10.1016/j.artint.2013.06.005},
    url = {https://doi.org/10.1016%2Fj.artint.2013.06.005},
    year = {2013},
    month = {sep},
    publisher = {Elsevier {BV}},
    volume = {202},
    pages = {29--51},
    author = {Mathias Niepert and Marc Gyssens and Bassem Sayrafi and Dirk Van Gucht},
    title = {On the conditional independence implication problem: A lattice-theoretic approach},
    journal = {Artificial Intelligence}
}

@article{Niepert_2013, doi = {10.1016/j.artint.2013.06.005}, url = {https://doi.org/10.1016%2Fj.artint.2013.06.005}, year = {2013}, month = {sep}, publisher = {Elsevier {BV}}, volume = {202}, pages = {29--51}, author = {Mathias Niepert and Marc Gyssens and Bassem Sayrafi and Dirk Van Gucht}, title = {On the conditional independence implication problem: A lattice-theoretic approach}, journal = {Artificial Intelligence} }