@inbook{Cohn_1981,
    title = {Algebra and Language Theory},
    isbn = {9789400983991},
    url = {http://dx.doi.org/10.1007/978-94-009-8399-1_11},
    doi = {10.1007/978-94-009-8399-1_11},
    booktitle = {Universal Algebra},
    publisher = {Springer Netherlands},
    author = {Cohn, P. M.},
    year = {1981},
    pages = {345–380},
    date-added = {2024-3-2 8:9:36 +0100}
}

@inbook{Cohn_1981, title = {Algebra and Language Theory}, isbn = {9789400983991}, url = {http://dx.doi.org/10.1007/978-94-009-8399-1_11}, doi = {10.1007/978-94-009-8399-1_11}, booktitle = {Universal Algebra}, publisher = {Springer Netherlands}, author = {Cohn, P. M.}, year = {1981}, pages = {345–380}, date-added = {2024-3-2 8:9:36 +0100} }