@incollection{friedman:75,
    Author = {Friedman, Harvey},
    BookTitle = {Logic Colloquium},
    Editor = {Parikh, Rohit},
    File = {Equality between functionals - Friedman (0) (0) - a - a - j.pdf},
    ISBN = {978-3-540-07155-6},
    Language = {English},
    Pages = {22-37},
    Publisher = {Springer Berlin Heidelberg},
    Series = {Lecture Notes in Mathematics},
    Title = {Equality between functionals},
    URL = {http://dx.doi.org/10.1007/BFb0064870},
    Volume = {453},
    Year = {1975},
    bdsk-url-1 = {http://dx.doi.org/10.1007/BFb0064870},
    date-added = {2013-06-24 08:46:33 +0000},
    date-modified = {2013-06-24 08:46:33 +0000},
    doi = {10.1007/BFb0064870}
}

@incollection{friedman:75, Author = {Friedman, Harvey}, BookTitle = {Logic Colloquium}, Editor = {Parikh, Rohit}, File = {Equality between functionals - Friedman (0) (0) - a - a - j.pdf}, ISBN = {978-3-540-07155-6}, Language = {English}, Pages = {22-37}, Publisher = {Springer Berlin Heidelberg}, Series = {Lecture Notes in Mathematics}, Title = {Equality between functionals}, URL = {http://dx.doi.org/10.1007/BFb0064870}, Volume = {453}, Year = {1975}, bdsk-url-1 = {http://dx.doi.org/10.1007/BFb0064870}, date-added = {2013-06-24 08:46:33 +0000}, date-modified = {2013-06-24 08:46:33 +0000}, doi = {10.1007/BFb0064870} }