@article{CRMATH_2006__343_11-12_731_0,
     author = {Piotr M. Hajac and Rainer Matthes and Wojciech Szyma\'nski},
     title = {Noncommutative index theory for mirror quantum spheres},
     journal = {Comptes Rendus. Math\'ematique},
     pages = {731--736},
     publisher = {Elsevier},
     volume = {343},
     number = {11-12},
     year = {2006},
     doi = {10.1016/j.crma.2006.09.021},
     language = {en},
}