@incollection{Col_on_2001,
    doi = {10.1007/3-540-45319-9_6},
    url = {https://doi.org/10.1007%2F3-540-45319-9_6},
    year = {2001},
    publisher = {Springer Berlin Heidelberg},
    pages = {67--81},
    author = {Michael A. Col{\'{o}}on and Henny B. Sipma},
    title = {Synthesis of Linear Ranking Functions},
    booktitle = {Tools and Algorithms for the Construction and Analysis of Systems}
}

@incollection{Col_on_2001, doi = {10.1007/3-540-45319-9_6}, url = {https://doi.org/10.1007%2F3-540-45319-9_6}, year = {2001}, publisher = {Springer Berlin Heidelberg}, pages = {67--81}, author = {Michael A. Col{\'{o}}on and Henny B. Sipma}, title = {Synthesis of Linear Ranking Functions}, booktitle = {Tools and Algorithms for the Construction and Analysis of Systems} }