@incollection{Oury_2005,
    doi = {10.1007/11541868_18},
    url = {https://doi.org/10.1007%2F11541868_18},
    year = {2005},
    publisher = {Springer Berlin Heidelberg},
    pages = {278--293},
    author = {Nicolas Oury},
    title = {Extensionality in the Calculus of Constructions},
    booktitle = {Lecture Notes in Computer Science}
}

@incollection{Oury_2005, doi = {10.1007/11541868_18}, url = {https://doi.org/10.1007%2F11541868_18}, year = {2005}, publisher = {Springer Berlin Heidelberg}, pages = {278--293}, author = {Nicolas Oury}, title = {Extensionality in the Calculus of Constructions}, booktitle = {Lecture Notes in Computer Science} }