@article{Nipkow_1989,
    doi = {10.1007/bf01887212},
    url = {https://doi.org/10.1007%2Fbf01887212},
    year = {1989},
    month = {mar},
    publisher = {Association for Computing Machinery ({ACM})},
    volume = {1},
    number = {1},
    pages = {320--338},
    author = {Tobias Nipkow},
    title = {Term rewriting and beyond - theorem proving in Isabelle},
    journal = {Formal Aspects of Computing}
}

@article{Nipkow_1989, doi = {10.1007/bf01887212}, url = {https://doi.org/10.1007%2Fbf01887212}, year = {1989}, month = {mar}, publisher = {Association for Computing Machinery ({ACM})}, volume = {1}, number = {1}, pages = {320--338}, author = {Tobias Nipkow}, title = {Term rewriting and beyond - theorem proving in Isabelle}, journal = {Formal Aspects of Computing} }