@article{Donnelly_2007,
    doi = {10.1016/j.entcs.2007.01.021},
    url = {https://doi.org/10.1016%2Fj.entcs.2007.01.021},
    year = {2007},
    month = {jun},
    publisher = {Elsevier {BV}},
    volume = {174},
    number = {5},
    pages = {109--125},
    author = {Kevin Donnelly and Hongwei Xi},
    title = {A Formalization of Strong Normalization for Simply-Typed Lambda-Calculus and System F},
    journal = {Electronic Notes in Theoretical Computer Science}
}

@article{Donnelly_2007, doi = {10.1016/j.entcs.2007.01.021}, url = {https://doi.org/10.1016%2Fj.entcs.2007.01.021}, year = {2007}, month = {jun}, publisher = {Elsevier {BV}}, volume = {174}, number = {5}, pages = {109--125}, author = {Kevin Donnelly and Hongwei Xi}, title = {A Formalization of Strong Normalization for Simply-Typed Lambda-Calculus and System F}, journal = {Electronic Notes in Theoretical Computer Science} }