@article{10_4153_CMB_2004_011_5,
     author = {Seto, Michio},
     title = {Invariant {Subspaces} on ${{\mathbb{T}}^{N}}$ and ${{\mathbb{R}}^{N}}$},
     journal = {Canadian mathematical bulletin},
     pages = {100--107},
     year = {2004},
     volume = {47},
     number = {1},
     doi = {10.4153/CMB-2004-011-5},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-2004-011-5/}
}