@article{Monagan_2015,
    doi = {10.1145/2733693.2733720},
    url = {https://doi.org/10.1145%2F2733693.2733720},
    year = {2015},
    month = {feb},
    publisher = {Association for Computing Machinery ({ACM})},
    volume = {48},
    number = {3/4},
    pages = {166--186},
    author = {Michael Monagan and Roman Pearce},
    title = {The Design of Maple{\textquotesingle}s Sum-of-Products and {POLY} Data Structures for Representing Mathematical Objects},
    journal = {{ACM} Communications in Computer Algebra}
}

@article{Monagan_2015, doi = {10.1145/2733693.2733720}, url = {https://doi.org/10.1145%2F2733693.2733720}, year = {2015}, month = {feb}, publisher = {Association for Computing Machinery ({ACM})}, volume = {48}, number = {3/4}, pages = {166--186}, author = {Michael Monagan and Roman Pearce}, title = {The Design of Maple{\textquotesingle}s Sum-of-Products and {POLY} Data Structures for Representing Mathematical Objects}, journal = {{ACM} Communications in Computer Algebra} }