Litovchenko, V. A. (2002) “On the Correct Solvability of One Cauchy Problem”, Ukrains’kyi Matematychnyi Zhurnal, 54(8), pp. 1067-1076. Available at: https://umj.imath.kiev.ua/index.php/umj/article/view/4147 (Accessed: 30May2024).