@article{ATIG_2014,
    doi = {10.1142/s0129054114400255},
    url = {https://doi.org/10.1142%2Fs0129054114400255},
    year = {2014},
    month = {dec},
    publisher = {World Scientific Pub Co Pte Lt},
    volume = {25},
    number = {08},
    pages = {1083--1096},
    author = {MOHAMED FAOUZI ATIG and K. NARAYAN KUMAR and PRAKASH SAIVASAN},
    title = {{ADJACENT} {ORDERED} {MULTI}-{PUSHDOWN} {SYSTEMS}},
    journal = {International Journal of Foundations of Computer Science}
}

@article{ATIG_2014, doi = {10.1142/s0129054114400255}, url = {https://doi.org/10.1142%2Fs0129054114400255}, year = {2014}, month = {dec}, publisher = {World Scientific Pub Co Pte Lt}, volume = {25}, number = {08}, pages = {1083--1096}, author = {MOHAMED FAOUZI ATIG and K. NARAYAN KUMAR and PRAKASH SAIVASAN}, title = {{ADJACENT} {ORDERED} {MULTI}-{PUSHDOWN} {SYSTEMS}}, journal = {International Journal of Foundations of Computer Science} }