@incollection{_er_ns_1993,
    doi = {10.1007/3-540-56922-7_21},
    url = {https://doi.org/10.1007%2F3-540-56922-7_21},
    year = {1993},
    publisher = {Springer Berlin Heidelberg},
    pages = {253--267},
    author = {K{\={a}}rlis {\v{C}}er{\={a}}ns and Jens Chr. Godskesen and Kim G. Larsen},
    title = {Timed modal specification - Theory and tools},
    booktitle = {Computer Aided Verification}
}

@incollection{_er_ns_1993, doi = {10.1007/3-540-56922-7_21}, url = {https://doi.org/10.1007%2F3-540-56922-7_21}, year = {1993}, publisher = {Springer Berlin Heidelberg}, pages = {253--267}, author = {K{\={a}}rlis {\v{C}}er{\={a}}ns and Jens Chr. Godskesen and Kim G. Larsen}, title = {Timed modal specification - Theory and tools}, booktitle = {Computer Aided Verification} }