@article{1256053439, author = {Chou, Ching}, title = {Minimal sets and ergodic measures for $\beta N \backslash N$}, journal = {Illinois J. Math.}, volume = {13}, number = {4}, year = {1969}, pages = { 777-788}, language = {en}, url = {http://dml.mathdoc.fr/item/1256053439} }
Chou, Ching. Minimal sets and ergodic measures for $\beta N \backslash N$. Illinois J. Math., Tome 13 (1969) no. 4, pp. 777-788. http://gdmltest.u-ga.fr/item/1256053439/