@article{Melzak_1961,
    doi = {10.4153/cmb-1961-031-9},
    url = {https://doi.org/10.4153%2Fcmb-1961-031-9},
    year = {1961},
    month = {sep},
    publisher = {Canadian Mathematical Society},
    volume = {4},
    number = {3},
    pages = {279--293},
    author = {Z.A. Melzak},
    title = {An Informal Arithmetical Approach to Computability and Computation},
    journal = {Canadian Mathematical Bulletin}
}

@article{Melzak_1961, doi = {10.4153/cmb-1961-031-9}, url = {https://doi.org/10.4153%2Fcmb-1961-031-9}, year = {1961}, month = {sep}, publisher = {Canadian Mathematical Society}, volume = {4}, number = {3}, pages = {279--293}, author = {Z.A. Melzak}, title = {An Informal Arithmetical Approach to Computability and Computation}, journal = {Canadian Mathematical Bulletin} }