@article{10_4153_CJM_2014_022_5,
     author = {Elliott, George A. and Niu, Zhuang},
     title = {All {Irrational} {Extended} {Rotation} {Algebras} are {AF} {Algebras}},
     journal = {Canadian journal of mathematics},
     pages = {810--826},
     year = {2015},
     volume = {67},
     number = {4},
     doi = {10.4153/CJM-2014-022-5},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-2014-022-5/}
}