@article{Bol_1996,
    doi = {10.1145/234752.234756},
    url = {https://doi.org/10.1145%2F234752.234756},
    year = {1996},
    month = {sep},
    publisher = {Association for Computing Machinery ({ACM})},
    volume = {43},
    number = {5},
    pages = {863--914},
    author = {Roland Bol and Jan Friso Groote},
    title = {The meaning of negative premises in transition system specifications},
    journal = {Journal of the {ACM}}
}

@article{Bol_1996, doi = {10.1145/234752.234756}, url = {https://doi.org/10.1145%2F234752.234756}, year = {1996}, month = {sep}, publisher = {Association for Computing Machinery ({ACM})}, volume = {43}, number = {5}, pages = {863--914}, author = {Roland Bol and Jan Friso Groote}, title = {The meaning of negative premises in transition system specifications}, journal = {Journal of the {ACM}} }