LuchkoV. M., and MatychukM. I. “Cauchy Problem for Parabolic Systems With Pulse Action”. Ukrains’kyi Matematychnyi Zhurnal 58, no. 11 (November 25, 2006): 1525–1535. Accessed July 27, 2024. https://umj.imath.kiev.ua/index.php/umj/article/view/3552.