@article{Denef_1980,
    title = {Ultraproducts and approximation in local rings. II},
    volume = {253},
    issn = {1432-1807},
    url = {http://dx.doi.org/10.1007/BF01457817},
    doi = {10.1007/bf01457817},
    number = {1},
    journal = {Mathematische Annalen},
    publisher = {Springer Science and Business Media LLC},
    author = {Denef, Jand and Lipshitz, Leonard},
    year = {1980},
    month = {feb},
    pages = {1--28},
    date-added = {2024-5-9 15:25:47 +0100}
}

@article{Denef_1980, title = {Ultraproducts and approximation in local rings. II}, volume = {253}, issn = {1432-1807}, url = {http://dx.doi.org/10.1007/BF01457817}, doi = {10.1007/bf01457817}, number = {1}, journal = {Mathematische Annalen}, publisher = {Springer Science and Business Media LLC}, author = {Denef, Jand and Lipshitz, Leonard}, year = {1980}, month = {feb}, pages = {1--28}, date-added = {2024-5-9 15:25:47 +0100} }