Haskız Coşkun, Elif Başkaya, “Asymptotics of eigenvalues of regular Sturm-Liouville problems with eigenvalue parameter in the boundary condition for integrable potential”, MATHEMATICA SCANDINAVICA, 107:2 (2010), 209
Elif Başkaya, “PERIODIC AND SEMI-PERIODIC EIGENVALUES OF HILL’S EQUATION WITH SYMMETRIC DOUBLE WELL POTENTIAL”, TWMS Journal of Applied and Engineering Mathematics, 10:2 (2020), 346-352
Elif Başkaya, Amin Boumenir, “Sampling and the Eigenvalues of a Quadratic Pencil”, SAMPLING THEORY IN SIGNAL AND IMAGE PROCESSING, 18 (2019), 9-22
Haskız Coşkun, Ayşe Kabataş, Elif Başkaya, “On Green’s function for boundary value problem with eigenvalue dependent quadratic boundary condition”, Boundary Value Problems, 2017:1 (2017)