@article{1181072339, author = {Cheng, R.}, title = {On the Structure of Shift-Invariant Subspaces $L^2(T^2,\mu)$}, journal = {Rocky Mountain J. Math.}, volume = {24}, number = {4}, year = {1994}, pages = { 1307-1317}, language = {en}, url = {http://dml.mathdoc.fr/item/1181072339} }
Cheng, R. On the Structure of Shift-Invariant Subspaces $L^2(T^2,\mu)$. Rocky Mountain J. Math., Tome 24 (1994) no. 4, pp. 1307-1317. http://gdmltest.u-ga.fr/item/1181072339/