Litovchenko, V. A. (2006) “Cauchy problem for one class of pseudodifferential systems with entire analytic symbols”, Ukrains’kyi Matematychnyi Zhurnal, 58(9), pp. 1211–1233. Available at: https://umj.imath.kiev.ua/index.php/umj/article/view/3523 (Accessed: 26April2024).