@article{NSJOM_1998_28_3a_0,
     author = {Ad\v{z}i\'c 

 Nevena},
     title = {Spectral approximation for inner and outer 

 solution of some {SPP}},
     journal = {Novi Sad Journal of Mathematics},
     pages = {1-9},
     publisher = {mathdoc},
     volume = {28},
     number = {3},
     year = {1998},
     url = {http://geodesic.mathdoc.fr/item/NSJOM_1998_28_3a_0/}
}