Lien, D.
(2002).
 On the asymptotical stability for index-k tractable daes.
<em>VNU Journal Of Science: Mathematics - Physics, 18</em>(4).
Retrieved from <a href="https://js.vnu.edu.vn/MaP/article/view/3319" target="_new">https://js.vnu.edu.vn/MaP/article/view/3319</a>