@article{PIM2_1986__39(53)_257747,
     author = {La\v{z}eti\'c, Neboj\v{s}a L},
     title = {On the convergence of biorthogonal series corresponding to nonselfadjoint {Sturm-Liouville} operator with discontinuous coefficients.},
     journal = {Publications de l 'Institut Math\'ematique. Nouvelle S\'erie},
     pages = {129},
     publisher = {mathdoc},
     volume = {39(53)},
     year = {1986},
     zbl = {0613.34021},
     language = {en},
     url = {https://geodesic-test.mathdoc.fr/item/PIM2_1986__39(53)_257747/}
}