Aldashev, S. A. (2011) “Eigenvalues and eigenfunctions of the Gellerstedt problem for the multidimensional Lavrent?ev?Bitsadze equation”, Ukrains’kyi Matematychnyi Zhurnal, 63(6), pp. 827-832. Available at: https://umj.imath.kiev.ua/index.php/umj/article/view/2765 (Accessed: 25April2024).