1.
Vitrychenko IE. Critical Cases of the π-Stability of a Nonautonomous Quasilinear Equation of the <em class="a-plus-plus">n</em&gt;th Order. Ukr. Mat. Zhurn. [Internet]. 2004Feb.25 [cited 2024Oct.12];56(2):264-70. Available from: https://umj.imath.kiev.ua/index.php/umj/article/view/3750