@article{10_4153_CJM_1976_080_3,
     author = {Junco, Andr\'es Del},
     title = {Transformations {With} {Discrete} {Spectrum} are {Stacking} {Transformations}},
     journal = {Canadian journal of mathematics},
     pages = {836--839},
     year = {1976},
     volume = {28},
     number = {4},
     doi = {10.4153/CJM-1976-080-3},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1976-080-3/}
}