MINH, Nguyen Duc.
 A new numerical invariant of artinian modules over noetherian local rings.
<strong>VNU Journal of Science: Mathematics - Physics</strong>, [S.l.], v. 21, n. 2, june 2005.
ISSN 2588-1124.
Available at: &lt;<a href="https://js.vnu.edu.vn/MaP/article/view/2339" target="_new">https://js.vnu.edu.vn/MaP/article/view/2339</a>&gt;. Date accessed: 04 apr. 2025.