@article{Koppelman:1971tr,
    Author = {Koppelman, Elaine},
    Date = {1971/01/01},
    File = {The calculus of operations and the rise of abstract algebra - Koppelman1971\_Article\_TheCalculusOfOperationsAndTheR.pdf},
    ISBN = {1432-0657},
    Journal = {Archive for History of Exact Sciences},
    Number = {3},
    Pages = {155--242},
    Title = {The calculus of operations and the rise of abstract algebra},
    URL = {https://doi.org/10.1007/BF00327101},
    Volume = {8},
    Year = {1971},
    bdsk-url-1 = {https://doi.org/10.1007/BF00327101},
    date-added = {2022-04-30 22:52:40 +0200},
    date-modified = {2022-04-30 22:52:41 +0200},
    id = {Koppelman1971},
    doi = {10.1007/BF00327101}
}

@article{Koppelman:1971tr, Author = {Koppelman, Elaine}, Date = {1971/01/01}, File = {The calculus of operations and the rise of abstract algebra - Koppelman1971_Article_TheCalculusOfOperationsAndTheR.pdf}, ISBN = {1432-0657}, Journal = {Archive for History of Exact Sciences}, Number = {3}, Pages = {155--242}, Title = {The calculus of operations and the rise of abstract algebra}, URL = {https://doi.org/10.1007/BF00327101}, Volume = {8}, Year = {1971}, bdsk-url-1 = {https://doi.org/10.1007/BF00327101}, date-added = {2022-04-30 22:52:40 +0200}, date-modified = {2022-04-30 22:52:41 +0200}, id = {Koppelman1971}, doi = {10.1007/BF00327101} }