@incollection{Kannan_1978,
    doi = {10.1007/978-3-642-95322-4_17},
    url = {https://doi.org/10.1007%2F978-3-642-95322-4_17},
    year = {1978},
    publisher = {Springer Berlin Heidelberg},
    pages = {161--172},
    author = {Ravindran Kannan and Clyde L. Monma},
    title = {On the Computational Complexity of Integer Programming Problems},
    booktitle = {Lecture Notes in Economics and Mathematical Systems}
}

@incollection{Kannan_1978, doi = {10.1007/978-3-642-95322-4_17}, url = {https://doi.org/10.1007%2F978-3-642-95322-4_17}, year = {1978}, publisher = {Springer Berlin Heidelberg}, pages = {161--172}, author = {Ravindran Kannan and Clyde L. Monma}, title = {On the Computational Complexity of Integer Programming Problems}, booktitle = {Lecture Notes in Economics and Mathematical Systems} }