@article{GDZPPN002360683,
title = {Density of the self-adjoint elements with finite spectrum in an irrational rotation C*-algebra.},
journal = {Mathematica Scandinavica},
volume = {67},
year = {1990},
pages = {73-86},
zbl = {0743.46070},
url = {http://dml.mathdoc.fr/item/GDZPPN002360683}
}
Choi, Man-Duen; Elliot, George A. Density of the self-adjoint elements with finite spectrum in an irrational rotation C*-algebra.. Mathematica Scandinavica, Tome 67 (1990) pp. 73-86. http://gdmltest.u-ga.fr/item/GDZPPN002360683/