@incollection{Levy:1975,
    Author = {Levy, Jean-Jacques},
    BookTitle = {{$\lambda$}-Calculus and Computer Science Theory},
    Editor = {B{\"o}hm, C.},
    ISBN = {978-3-540-07416-8},
    Pages = {147-165},
    Publisher = {Springer Berlin Heidelberg},
    Series = {Lecture Notes in Computer Science},
    Title = {An algebraic interpretation of the {$\lambda$}{$\beta$}K-calculus and a labelled {$\lambda$}-calculus},
    URL = {http://dx.doi.org/10.1007/BFb0029523},
    Volume = {37},
    Year = {1975},
    bdsk-url-1 = {http://dx.doi.org/10.1007/BFb0029523},
    date-added = {2014-01-25 09:41:06 +0000},
    date-modified = {2014-01-25 09:41:06 +0000},
    doi = {10.1007/BFb0029523}
}

@incollection{Levy:1975, Author = {Levy, Jean-Jacques}, BookTitle = {{$\lambda$}-Calculus and Computer Science Theory}, Editor = {B{\"o}hm, C.}, ISBN = {978-3-540-07416-8}, Pages = {147-165}, Publisher = {Springer Berlin Heidelberg}, Series = {Lecture Notes in Computer Science}, Title = {An algebraic interpretation of the {$\lambda$}{$\beta$}K-calculus and a labelled {$\lambda$}-calculus}, URL = {http://dx.doi.org/10.1007/BFb0029523}, Volume = {37}, Year = {1975}, bdsk-url-1 = {http://dx.doi.org/10.1007/BFb0029523}, date-added = {2014-01-25 09:41:06 +0000}, date-modified = {2014-01-25 09:41:06 +0000}, doi = {10.1007/BFb0029523} }