@article{Chomsky:TIT:1956,
    doi = {10.1109/tit.1956.1056813},
    url = {https://doi.org/10.1109%2Ftit.1956.1056813},
    year = {1956},
    month = {sep},
    publisher = {Institute of Electrical and Electronics Engineers ({IEEE})},
    volume = {2},
    number = {3},
    pages = {113--124},
    author = {N. Chomsky},
    title = {Three models for the description of language},
    journal = {{IEEE} Transactions on Information Theory}
}

@article{Chomsky:TIT:1956, doi = {10.1109/tit.1956.1056813}, url = {https://doi.org/10.1109%2Ftit.1956.1056813}, year = {1956}, month = {sep}, publisher = {Institute of Electrical and Electronics Engineers ({IEEE})}, volume = {2}, number = {3}, pages = {113--124}, author = {N. Chomsky}, title = {Three models for the description of language}, journal = {{IEEE} Transactions on Information Theory} }