@article{Esteva_2000,
    doi = {10.1007/s001530050006},
    url = {https://doi.org/10.1007%2Fs001530050006},
    year = {2000},
    month = {feb},
    publisher = {Springer Science and Business Media {LLC}},
    volume = {39},
    number = {2},
    pages = {103--124},
    author = {Francesc Esteva and Llu{\'{\i}}s Godo and Petr H{\'{a}}jek and Mirko Navara},
    title = {Residuated fuzzy logics with an involutive negation},
    journal = {Archive for Mathematical Logic}
}

@article{Esteva_2000, doi = {10.1007/s001530050006}, url = {https://doi.org/10.1007%2Fs001530050006}, year = {2000}, month = {feb}, publisher = {Springer Science and Business Media {LLC}}, volume = {39}, number = {2}, pages = {103--124}, author = {Francesc Esteva and Llu{\'{\i}}s Godo and Petr H{\'{a}}jek and Mirko Navara}, title = {Residuated fuzzy logics with an involutive negation}, journal = {Archive for Mathematical Logic} }