@article{Aschenbrenner_2000,
    doi = {10.1006/jabr.1999.8128},
    url = {https://doi.org/10.1006%2Fjabr.1999.8128},
    year = {2000},
    month = {mar},
    publisher = {Elsevier {BV}},
    volume = {225},
    number = {1},
    pages = {309--358},
    author = {Matthias Aschenbrenner and Lou van den Dries},
    title = {Closed asymptotic couples},
    journal = {Journal of Algebra}
}

@article{Aschenbrenner_2000, doi = {10.1006/jabr.1999.8128}, url = {https://doi.org/10.1006%2Fjabr.1999.8128}, year = {2000}, month = {mar}, publisher = {Elsevier {BV}}, volume = {225}, number = {1}, pages = {309--358}, author = {Matthias Aschenbrenner and Lou van den Dries}, title = {Closed asymptotic couples}, journal = {Journal of Algebra} }