CHAU, Dang Dinh.
 On the asymptotic equivalence of linear differential equation in hilbert spaces.
<strong>VNU Journal of Science: Mathematics - Physics</strong>, [S.l.], v. 18, n. 2, june 2002.
ISSN 2588-1124.
Available at: &lt;<a href="https://js.vnu.edu.vn/MaP/article/view/3310" target="_new">https://js.vnu.edu.vn/MaP/article/view/3310</a>&gt;. Date accessed: 19 may 2024.