@article{Bloem_2000,
    doi = {10.1006/jcss.1999.1684},
    url = {https://doi.org/10.1006%2Fjcss.1999.1684},
    year = {2000},
    month = {aug},
    publisher = {Elsevier {BV}},
    volume = {61},
    number = {1},
    pages = {1--50},
    author = {Roderick Bloem and Joost Engelfriet},
    title = {A Comparison of Tree Transductions Defined by Monadic Second Order Logic and by Attribute Grammars},
    journal = {Journal of Computer and System Sciences}
}

@article{Bloem_2000, doi = {10.1006/jcss.1999.1684}, url = {https://doi.org/10.1006%2Fjcss.1999.1684}, year = {2000}, month = {aug}, publisher = {Elsevier {BV}}, volume = {61}, number = {1}, pages = {1--50}, author = {Roderick Bloem and Joost Engelfriet}, title = {A Comparison of Tree Transductions Defined by Monadic Second Order Logic and by Attribute Grammars}, journal = {Journal of Computer and System Sciences} }