@article{NSJOM_1987_17_2a_2,
     author = {Surla Katarina},
     title = {A uniformly convergent spline 

 difference scheme for a self-adjoint singular perturbation problem},
     journal = {Novi Sad Journal of Mathematics},
     pages = {31-38},
     publisher = {mathdoc},
     volume = {17},
     number = {2},
     year = {1987},
     url = {http://geodesic.mathdoc.fr/item/NSJOM_1987_17_2a_2/}
}