@article{1093890709, author = {Harris, John H.}, title = {Indexings of sets.}, journal = {Notre Dame J. Formal Logic}, volume = {13}, number = {3}, year = {1972}, pages = { 481-484}, language = {en}, url = {http://dml.mathdoc.fr/item/1093890709} }
Harris, John H. Indexings of sets.. Notre Dame J. Formal Logic, Tome 13 (1972) no. 3, pp. 481-484. http://gdmltest.u-ga.fr/item/1093890709/