PozurS. V. (2003) “Singular Nonlinear Eigenvalue Problem for One Class of Second-Order Differential Equations”, Ukrains’kyi Matematychnyi Zhurnal, 55(10), pp. 1431-1438. Available at: https://umj.imath.kiev.ua/index.php/umj/article/view/4012 (Accessed: 27July2024).