PEI, Lijun; 						CHEN, Fuyong.
 Sucient, necessary and i conditions of the stability of the coecients-time-varying linear system with time delays.
<strong>International Journal of Novel Ideas: Mathematics (No more publication since 2019)</strong>, [S.l.], v. 2, p. 1-13, mar. 2018.
ISSN 2331-5210.
Available at: &lt;<a href="https://www.sci-en-tech.com/IJNI/index.php/Math/article/view/116" target="_new">https://www.sci-en-tech.com/IJNI/index.php/Math/article/view/116</a>&gt;. Date accessed: 24 apr. 2024.