@article{NSJOM_1998_28_2a_1,
     author = {K. 

 Surla},
     title = {The 

 cubic spline difference scheme on non-uniform mesh},
     journal = {Novi Sad Journal of Mathematics},
     pages = {9-17},
     publisher = {mathdoc},
     volume = {28},
     number = {2},
     year = {1998},
     url = {http://geodesic.mathdoc.fr/item/NSJOM_1998_28_2a_1/}
}