@article{1256051012, author = {Mielke, M. V.}, title = {The algebraic structure of certain $\Omega$-specta}, journal = {Illinois J. Math.}, volume = {18}, number = {4}, year = {1974}, pages = { 602-607}, language = {en}, url = {http://dml.mathdoc.fr/item/1256051012} }
Mielke, M. V. The algebraic structure of certain $\Omega$-specta. Illinois J. Math., Tome 18 (1974) no. 4, pp. 602-607. http://gdmltest.u-ga.fr/item/1256051012/