@article{H_jek_1996,
    doi = {10.1007/bf01268618},
    url = {https://doi.org/10.1007%2Fbf01268618},
    year = {1996},
    month = {may},
    publisher = {Springer Science and Business Media {LLC}},
    volume = {35},
    number = {3},
    pages = {191--208},
    author = {Petr H{\'{a}}jek and Lluis Godo and Francesc Esteva},
    title = {A complete many-valued logic with product-conjunction},
    journal = {Archive for Mathematical Logic}
}

@article{H_jek_1996, doi = {10.1007/bf01268618}, url = {https://doi.org/10.1007%2Fbf01268618}, year = {1996}, month = {may}, publisher = {Springer Science and Business Media {LLC}}, volume = {35}, number = {3}, pages = {191--208}, author = {Petr H{\'{a}}jek and Lluis Godo and Francesc Esteva}, title = {A complete many-valued logic with product-conjunction}, journal = {Archive for Mathematical Logic} }