@article{Robinson:1958,
    Author = {Robinson, Raphael M.},
    File = {S0002-9939-1958-0093479-4 (0) - a - a - c.pdf},
    Journal = {Proceedings of the American Mathematical Society},
    Pages = {238--242},
    Publisher = {Cambridge University Press},
    Title = {Restricted set-theoretical definitions in arithmetic},
    Volume = {9},
    Year = {1958},
    bdsk-url-1 = {http://dx.doi.org/10.2307/2269725},
    date-added = {2021-08-13 12:13:25 +0200},
    date-modified = {2021-08-13 12:13:25 +0200},
    doi = {10.2307/2269725}
}

@article{Robinson:1958, Author = {Robinson, Raphael M.}, File = {S0002-9939-1958-0093479-4 (0) - a - a - c.pdf}, Journal = {Proceedings of the American Mathematical Society}, Pages = {238--242}, Publisher = {Cambridge University Press}, Title = {Restricted set-theoretical definitions in arithmetic}, Volume = {9}, Year = {1958}, bdsk-url-1 = {http://dx.doi.org/10.2307/2269725}, date-added = {2021-08-13 12:13:25 +0200}, date-modified = {2021-08-13 12:13:25 +0200}, doi = {10.2307/2269725} }