@article{NSJOM_1986_16_2a_12,
     author = {Surla Katarina},
     title = {The singularly perturbed spline 

 collocation method for boundary value problems with mixed boundary 

 conditions},
     journal = {Novi Sad Journal of Mathematics},
     pages = {131-143},
     publisher = {mathdoc},
     volume = {16},
     number = {2},
     year = {1986},
     url = {http://geodesic.mathdoc.fr/item/NSJOM_1986_16_2a_12/}
}