%0 Journal Article %A Junco, Andrés Del %T Transformations With Discrete Spectrum are Stacking Transformations %J Canadian journal of mathematics %D 1976 %P 836-839 %V 28 %N 4 %U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1976-080-3/ %R 10.4153/CJM-1976-080-3 %F 10_4153_CJM_1976_080_3