@article{Backus_1963,
    doi = {10.1145/366193.366201},
    url = {https://doi.org/10.1145%2F366193.366201},
    year = {1963},
    month = {jan},
    publisher = {Association for Computing Machinery ({ACM})},
    volume = {6},
    number = {1},
    pages = {1--17},
    author = {J. W. Backus and F. L. Bauer and J. Green and C. Katz and J. McCarthy and A. J. Perlis and H. Rutishauser and K. Samelson and B. Vauquois and J. H. Wegstein and A. van Wijngaarden and M. Woodger},
    editor = {P. Naur},
    title = {Revised report on the algorithm language {ALGOL} 60},
    journal = {Communications of the {ACM}}
}

@article{Backus_1963, doi = {10.1145/366193.366201}, url = {https://doi.org/10.1145%2F366193.366201}, year = {1963}, month = {jan}, publisher = {Association for Computing Machinery ({ACM})}, volume = {6}, number = {1}, pages = {1--17}, author = {J. W. Backus and F. L. Bauer and J. Green and C. Katz and J. McCarthy and A. J. Perlis and H. Rutishauser and K. Samelson and B. Vauquois and J. H. Wegstein and A. van Wijngaarden and M. Woodger}, editor = {P. Naur}, title = {Revised report on the algorithm language {ALGOL} 60}, journal = {Communications of the {ACM}} }