@article{NSJOM_1989_19_1a_2,
     author = {Vulanovi\'c R. and Herceg 

 D. and Petrovi\'c N.},
     title = {A numerical solution of the singular 

 perturbation problem aristing from a {Weakly} coupled system},
     journal = {Novi Sad Journal of Mathematics},
     pages = {25-32},
     publisher = {mathdoc},
     volume = {19},
     number = {1},
     year = {1989},
     url = {http://geodesic.mathdoc.fr/item/NSJOM_1989_19_1a_2/}
}