@article{Hassoun_1995,
    doi = {10.1109/81.382473},
    url = {https://doi.org/10.1109%2F81.382473},
    year = {1995},
    month = {apr},
    publisher = {Institute of Electrical and Electronics Engineers ({IEEE})},
    volume = {42},
    number = {4},
    pages = {201--211},
    author = {M.M. Hassoun and  Pen-Min Lin},
    title = {A hierarchical network approach to symbolic analysis of large-scale networks},
    journal = {{IEEE} Transactions on Circuits and Systems I: Fundamental Theory and Applications}
}

@article{Hassoun_1995, doi = {10.1109/81.382473}, url = {https://doi.org/10.1109%2F81.382473}, year = {1995}, month = {apr}, publisher = {Institute of Electrical and Electronics Engineers ({IEEE})}, volume = {42}, number = {4}, pages = {201--211}, author = {M.M. Hassoun and Pen-Min Lin}, title = {A hierarchical network approach to symbolic analysis of large-scale networks}, journal = {{IEEE} Transactions on Circuits and Systems I: Fundamental Theory and Applications} }