[1]
A. M. Akymenko and V. P. Yakovets, “On Periodic Solutions of Degenerate Singularly Perturbed Linear Systems with Multiple Elementary Divisor”,
Ukr. Mat. Zhurn., vol. 54, no. 10, pp. 1403–1415, Oct. 2002, Accessed: Apr. 07, 2025. [Online]. Available:
https://umj.imath.kiev.ua/index.php/umj/article/view/4178