@article{Purdy_1999,
    doi = {10.2307/2586789},
    url = {https://doi.org/10.2307%2F2586789},
    year = {1999},
    month = {dec},
    publisher = {Cambridge University Press ({CUP})},
    volume = {64},
    number = {4},
    pages = {1439--1466},
    author = {William C. Purdy},
    title = {Quine{\textquotesingle}s `limits of decision'},
    journal = {Journal of Symbolic Logic}
}

@article{Purdy_1999, doi = {10.2307/2586789}, url = {https://doi.org/10.2307%2F2586789}, year = {1999}, month = {dec}, publisher = {Cambridge University Press ({CUP})}, volume = {64}, number = {4}, pages = {1439--1466}, author = {William C. Purdy}, title = {Quine{\textquotesingle}s `limits of decision'}, journal = {Journal of Symbolic Logic} }