SukhorolskyiM. A. (2016) “Boundary-value problems for the Helmholts equation in domains of the complex plane”, Ukrains’kyi Matematychnyi Zhurnal, 68(3), pp. 363-376. Available at: https://umj.imath.kiev.ua/index.php/umj/article/view/1844 (Accessed: 4October2024).