@article{COHEN_2011,
    doi = {10.1017/s1471068410000529},
    url = {https://doi.org/10.1017%2Fs1471068410000529},
    year = {2011},
    month = {jan},
    publisher = {Cambridge University Press ({CUP})},
    volume = {11},
    number = {2-3},
    pages = {263--296},
    author = {SHAY B. COHEN and ROBERT J. SIMMONS and NOAH A. SMITH},
    title = {Products of weighted logic programs},
    journal = {Theory and Practice of Logic Programming}
}

@article{COHEN_2011, doi = {10.1017/s1471068410000529}, url = {https://doi.org/10.1017%2Fs1471068410000529}, year = {2011}, month = {jan}, publisher = {Cambridge University Press ({CUP})}, volume = {11}, number = {2-3}, pages = {263--296}, author = {SHAY B. COHEN and ROBERT J. SIMMONS and NOAH A. SMITH}, title = {Products of weighted logic programs}, journal = {Theory and Practice of Logic Programming} }