@article{PIM_1986_N_S_39_53_a17,
     author = {Neboj\v{s}a L. La\v{z}eti\'c},
     title = {On the {Convergence} of {Biorthogonal} {Series} {Corresponding} to {Nonselfadjoint} {Sturm-Liouville} {Operator} with {Discontinuous} {Coefficients}},
     journal = {Publications de l'Institut Math\'ematique},
     pages = {129 },
     publisher = {mathdoc},
     volume = {_N_S_39},
     number = {53},
     year = {1986},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/PIM_1986_N_S_39_53_a17/}
}