@article{10_4064_cm107_1_10,
     author = {Geoffrey R. Goodson},
     title = {Spectral properties of ergodic dynamical systems
 conjugate to their composition squares},
     journal = {Colloquium Mathematicum},
     pages = {99--118},
     publisher = {mathdoc},
     volume = {107},
     number = {1},
     year = {2007},
     doi = {10.4064/cm107-1-10},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/cm107-1-10/}
}