[1]
L. L. Oridoroga, “Boundary value problems for 2x2 Dirac type systems with spectral parameter in boundary conditions”, MFAT, vol. 7, no. 1, pp. 82–87, Mar. 2001, Accessed: Dec. 17, 2025. [Online]. Available: https://zen.imath.kiev.ua/index.php/mfat/article/view/142