@article{EMJ_2024_15_3_a5,
     author = {N. P. Kosar and O. Akcay},
     title = {The spectrum and principal functions of a nonself-adjoint {Sturm--Liouville} operator with discontinuity conditions},
     journal = {Eurasian mathematical journal},
     pages = {55--67},
     publisher = {mathdoc},
     volume = {15},
     number = {3},
     year = {2024},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EMJ_2024_15_3_a5/}
}