@article{1183736856, author = {Meyer, Robert K. and Dunn, J. Michael}, title = {E, R, and $\gamma$}, journal = {J. Symbolic Logic}, volume = {34}, number = {1}, year = {1969}, pages = { 460-474}, language = {en}, url = {http://dml.mathdoc.fr/item/1183736856} }
Meyer, Robert K.; Dunn, J. Michael. E, R, and $\gamma$. J. Symbolic Logic, Tome 34 (1969) no. 1, pp. 460-474. http://gdmltest.u-ga.fr/item/1183736856/