@incollection{Popa_2019,
    doi = {10.1007/978-3-030-14812-6_33},
    url = {https://doi.org/10.1007%2F978-3-030-14812-6_33},
    year = {2019},
    publisher = {Springer International Publishing},
    pages = {536--549},
    author = {Alexandru Popa and Andrei Tanasescu},
    title = {An Output-Sensitive Algorithm for the Minimization of 2-Dimensional String Covers},
    booktitle = {Lecture Notes in Computer Science}
}

@incollection{Popa_2019, doi = {10.1007/978-3-030-14812-6_33}, url = {https://doi.org/10.1007%2F978-3-030-14812-6_33}, year = {2019}, publisher = {Springer International Publishing}, pages = {536--549}, author = {Alexandru Popa and Andrei Tanasescu}, title = {An Output-Sensitive Algorithm for the Minimization of 2-Dimensional String Covers}, booktitle = {Lecture Notes in Computer Science} }