@article{10_4153_CMB_2011_191_x,
     author = {Sundar, S.},
     title = {Inverse {Semigroups} and {Sheu's} {Groupoid} for {Odd} {Dimensional} {Quantum} {Spheres}},
     journal = {Canadian mathematical bulletin},
     pages = {630--639},
     year = {2013},
     volume = {56},
     number = {3},
     doi = {10.4153/CMB-2011-191-x},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-2011-191-x/}
}