@article{Tiwari_2007,
    doi = {10.1007/s10703-007-0044-3},
    url = {https://doi.org/10.1007%2Fs10703-007-0044-3},
    year = {2007},
    month = {dec},
    publisher = {Springer Science and Business Media {LLC}},
    volume = {32},
    number = {1},
    pages = {57--83},
    author = {Ashish Tiwari},
    title = {Abstractions for hybrid systems},
    journal = {Formal Methods in System Design}
}

@article{Tiwari_2007, doi = {10.1007/s10703-007-0044-3}, url = {https://doi.org/10.1007%2Fs10703-007-0044-3}, year = {2007}, month = {dec}, publisher = {Springer Science and Business Media {LLC}}, volume = {32}, number = {1}, pages = {57--83}, author = {Ashish Tiwari}, title = {Abstractions for hybrid systems}, journal = {Formal Methods in System Design} }