@article{Sch_nhage_1971,
    doi = {10.1007/bf02242355},
    url = {https://doi.org/10.1007%2Fbf02242355},
    year = {1971},
    month = {sep},
    publisher = {Springer Science and Business Media {LLC}},
    volume = {7},
    number = {3-4},
    pages = {281--292},
    author = {A. Schönhage and V. Strassen},
    title = {Schnelle Multiplikation gro{\ss}er Zahlen},
    journal = {Computing}
}

@article{Sch_nhage_1971, doi = {10.1007/bf02242355}, url = {https://doi.org/10.1007%2Fbf02242355}, year = {1971}, month = {sep}, publisher = {Springer Science and Business Media {LLC}}, volume = {7}, number = {3-4}, pages = {281--292}, author = {A. Schönhage and V. Strassen}, title = {Schnelle Multiplikation gro{\ss}er Zahlen}, journal = {Computing} }