@incollection{Bertolino_2006,
    doi = {10.1007/978-3-540-33253-4_11},
    url = {https://doi.org/10.1007%2F978-3-540-33253-4_11},
    year = {2006},
    publisher = {Springer Berlin Heidelberg},
    pages = {425--445},
    author = {Antonia Bertolino and Alessandro Fantechi and Stefania Gnesi and Giuseppe Lami},
    title = {Product Line Use Cases: Scenario-Based Specification and Testing of Requirements},
    booktitle = {Software Product Lines}
}

@incollection{Bertolino_2006, doi = {10.1007/978-3-540-33253-4_11}, url = {https://doi.org/10.1007%2F978-3-540-33253-4_11}, year = {2006}, publisher = {Springer Berlin Heidelberg}, pages = {425--445}, author = {Antonia Bertolino and Alessandro Fantechi and Stefania Gnesi and Giuseppe Lami}, title = {Product Line Use Cases: Scenario-Based Specification and Testing of Requirements}, booktitle = {Software Product Lines} }