@article{10_1090_S0894_0347_2015_00823_2,
     author = {Kachkovskiy, Ilya and Safarov, Yuri},
     title = {Distance to normal elements in {\ensuremath{\mathit{C}}*-algebras} of real rank zero},
     journal = {Journal of the American Mathematical Society},
     pages = {61--80},
     year = {2016},
     volume = {29},
     number = {1},
     doi = {10.1090/S0894-0347-2015-00823-2},
     url = {http://geodesic.mathdoc.fr/articles/10.1090/S0894-0347-2015-00823-2/}
}