Tho, N.
(2009).
 Non-commutative chern characters of the c*-algebras of the sphers.
<em>VNU Journal Of Science: Mathematics - Physics, 25</em>(4).
Retrieved from <a href="https://js.vnu.edu.vn/MaP/article/view/2657" target="_new">https://js.vnu.edu.vn/MaP/article/view/2657</a>