@article{Keimel_2009,
    doi = {10.1016/j.apal.2008.06.019},
    url = {https://doi.org/10.1016%2Fj.apal.2008.06.019},
    year = {2009},
    month = {jun},
    publisher = {Elsevier {BV}},
    volume = {159},
    number = {3},
    pages = {292--306},
    author = {Klaus Keimel and Jimmie D. Lawson},
    title = {{$D$-completions and the $d$-topology}},
    journal = {Annals of Pure and Applied Logic}
}

@article{Keimel_2009, doi = {10.1016/j.apal.2008.06.019}, url = {https://doi.org/10.1016%2Fj.apal.2008.06.019}, year = {2009}, month = {jun}, publisher = {Elsevier {BV}}, volume = {159}, number = {3}, pages = {292--306}, author = {Klaus Keimel and Jimmie D. Lawson}, title = {{$D$-completions and the $d$-topology}}, journal = {Annals of Pure and Applied Logic} }