@article{GDZPPN001263056, title = {A non-spectral representation of shift semigroups.}, journal = {Semigroup forum}, volume = {46}, year = {1993}, pages = {381-388}, zbl = {0801.47027}, url = {http://dml.mathdoc.fr/item/GDZPPN001263056} }
Levan, N. A non-spectral representation of shift semigroups.. Semigroup forum, Tome 46 (1993) pp. 381-388. http://gdmltest.u-ga.fr/item/GDZPPN001263056/