@book{Golan_1999,
    doi = {10.1007/978-94-015-9333-5},
    url = {https://doi.org/10.1007%2F978-94-015-9333-5},
    year = {1999},
    publisher = {Springer Netherlands},
    author = {Jonathan S. Golan},
    title = {Semirings and their Applications}
}

@book{Golan_1999, doi = {10.1007/978-94-015-9333-5}, url = {https://doi.org/10.1007%2F978-94-015-9333-5}, year = {1999}, publisher = {Springer Netherlands}, author = {Jonathan S. Golan}, title = {Semirings and their Applications} }