@incollection{Brandt_1997,
    doi = {10.1007/3-540-62688-3_29},
    url = {https://doi.org/10.1007%2F3-540-62688-3_29},
    year = {1997},
    publisher = {Springer Berlin Heidelberg},
    pages = {63--81},
    author = {Michael Brandt and Fritz Henglein},
    title = {Coinductive axiomatization of recursive type equality and subtyping},
    booktitle = {Lecture Notes in Computer Science}
}

@incollection{Brandt_1997, doi = {10.1007/3-540-62688-3_29}, url = {https://doi.org/10.1007%2F3-540-62688-3_29}, year = {1997}, publisher = {Springer Berlin Heidelberg}, pages = {63--81}, author = {Michael Brandt and Fritz Henglein}, title = {Coinductive axiomatization of recursive type equality and subtyping}, booktitle = {Lecture Notes in Computer Science} }