@article{NSJOM_1991_21_2a_11,
     author = {Petrovi\'c Nenad},
     title = {On a uniform numerical 

 method for a nonlocal problem},
     journal = {Novi Sad Journal of Mathematics},
     pages = {133-140},
     publisher = {mathdoc},
     volume = {21},
     number = {2},
     year = {1991},
     url = {http://geodesic.mathdoc.fr/item/NSJOM_1991_21_2a_11/}
}