@incollection{KreiselMintsSimpson:1975,
    Author = {Kreisel, G. and Mints, G.E. and Simpson, S.G.},
    BookTitle = {Logic Colloquium},
    Editor = {Parikh, Rohit},
    ISBN = {978-3-540-07155-6},
    Language = {English},
    Pages = {38-131},
    Publisher = {Springer Berlin Heidelberg},
    Series = {Lecture Notes in Mathematics},
    Title = {The use of abstract language in elementary metamathematics: Some pedagogic examples},
    URL = {http://dx.doi.org/10.1007/BFb0064871},
    Volume = {453},
    Year = {1975},
    bdsk-url-1 = {http://dx.doi.org/10.1007/BFb0064871},
    date-added = {2014-01-16 15:51:41 +0000},
    date-modified = {2014-01-16 15:51:41 +0000},
    doi = {10.1007/BFb0064871}
}

@incollection{KreiselMintsSimpson:1975, Author = {Kreisel, G. and Mints, G.E. and Simpson, S.G.}, BookTitle = {Logic Colloquium}, Editor = {Parikh, Rohit}, ISBN = {978-3-540-07155-6}, Language = {English}, Pages = {38-131}, Publisher = {Springer Berlin Heidelberg}, Series = {Lecture Notes in Mathematics}, Title = {The use of abstract language in elementary metamathematics: Some pedagogic examples}, URL = {http://dx.doi.org/10.1007/BFb0064871}, Volume = {453}, Year = {1975}, bdsk-url-1 = {http://dx.doi.org/10.1007/BFb0064871}, date-added = {2014-01-16 15:51:41 +0000}, date-modified = {2014-01-16 15:51:41 +0000}, doi = {10.1007/BFb0064871} }