@article{Landin_1964,
    doi = {10.1093/comjnl/6.4.308},
    url = {https://doi.org/10.1093%2Fcomjnl%2F6.4.308},
    year = {1964},
    month = {jan},
    publisher = {Oxford University Press ({OUP})},
    volume = {6},
    number = {4},
    pages = {308--320},
    author = {P. J. Landin},
    title = {The Mechanical Evaluation of Expressions},
    journal = {The Computer Journal}
}

@article{Landin_1964, doi = {10.1093/comjnl/6.4.308}, url = {https://doi.org/10.1093%2Fcomjnl%2F6.4.308}, year = {1964}, month = {jan}, publisher = {Oxford University Press ({OUP})}, volume = {6}, number = {4}, pages = {308--320}, author = {P. J. Landin}, title = {The Mechanical Evaluation of Expressions}, journal = {The Computer Journal} }