NGHI, Nguyen Van.
 On linear multipoint boundary - value problems for index-2 differentiable - algebraic equations.
<strong>VNU Journal of Science: Natural Sciences and Technology</strong>, [S.l.], v. 15, n. 1, mar. 1999.
ISSN 2588-1140.
Available at: &lt;<a href="https://js.vnu.edu.vn/NST/article/view/3728" target="_new">https://js.vnu.edu.vn/NST/article/view/3728</a>&gt;. Date accessed: 22 nov. 2024.