@article{1183739727, author = {Harrington, Leo and Jech, Thomas}, title = {On $\Sigma\_1$ Well-Orderings of the Universe}, journal = {J. Symbolic Logic}, volume = {41}, number = {1}, year = {1976}, pages = { 167-170}, language = {en}, url = {http://dml.mathdoc.fr/item/1183739727} }
Harrington, Leo; Jech, Thomas. On $\Sigma_1$ Well-Orderings of the Universe. J. Symbolic Logic, Tome 41 (1976) no. 1, pp. 167-170. http://gdmltest.u-ga.fr/item/1183739727/